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HandoutHandout 1: Supply & Shopping List — Vegetable Gardening at Altitude
Handout 1: Supply & Shopping List — Vegetable Gardening at Altitude
Before we plant anything, let's get you outfitted. Honestly, you don't need half of what the garden center will try to sell you. Here's what actually matters, split into what you need to start and what's nice once you're hooked.
The Basics (budget tier)
- Raised bed materials — untreated lumber (2x10 or 2x12 works fine), or a kit if you don't want to measure and cut. I'll die on this hill: raised beds are worth it here because our native soil is heavy, alkaline, and the hard water makes it worse. A bed lets you control what's actually in the dirt.
- Garden soil / compost blend — don't just dig up your yard dirt and call it done. Get a raised-bed soil mix or make your own with compost. Costco and the garden centers along the bench both carry bagged compost in spring, and it's worth the trunk space.
- Hand trowel and a spade — one of each, nothing fancy.
- Watering can or hose with a decent nozzle — you're going to water deep and less often, not a little every day, so you want something that can actually soak a bed, not just mist it.
- Tomato and pepper transplants, not seed packets. First year, buy the starts. Our season's too short to spend four weeks nursing seedlings on a windowsill and finding out you did it wrong. Learn the garden first.
- Seed packets for direct-sow crops — beans, carrots, peas, squash. Ignore the dates printed on the back. Those are written for somewhere warmer than here. Our last frost can sneak into late May.
- Popsicle sticks and a pencil — to mark what you planted and when. I learned this the hard way after sowing carrots too early and losing half the row to cold, wet soil. Now every row gets a sow date on a stick so I stop guessing.
- A basic garden journal — a spiral notebook is fine. Mine's three seasons deep with soil notes and pencil drawings of leaves I can't always identify. Keith once asked if one of my squash sketches was a map. It's fine. It works for me, not because it's tidy.
The "get you through the whole season" tier
- A cheap max/min thermometer, the kind that records the overnight low. This is the single best thing you can buy this year. Everyone worries about our hot dry afternoons, but the real killer here is a clear night that drops to freezing when you weren't paying attention. Put the thermometer in the bed, check it every morning, and you'll understand your own yard instead of some county average.
- Row cover or old sheets — for the nights that thermometer warns you about.
- A soil pH test kit — our water is hard enough that I started seeing white crust on the surface of my beds by August. Took me embarrassingly long to connect that to the water and not some plant disease. Test early so you're not guessing later.
- Mulch (straw or bark) — helps with our dry air pulling moisture out of the bed faster than you'd think.
Nice-to-Have (once you're hooked)
- A cold frame — I built mine out of an old storm window and scrap two-by-fours over a weekend. It's ugly. It works. I have eleven photos of it on my phone from four different angles, which tells you how proud I am of an ugly box.
- Drip irrigation on a timer — not essential year one, but it'll save you in July when you're not home to water.
- A soil thermometer — separate from the air thermometer, this tells you when the ground is actually warm enough for seeds, especially for something finicky like squash.
Shopping Notes
Buy transplants from a local nursery rather than a big box store if you can. They tend to carry varieties bred for a shorter season, which matters more here than people think. Compost and soil amendments are cheaper by the bag at Costco if you're filling more than one bed. Don't buy basil starts from me for advice on keeping them alive. Everything else in my garden does fine and the basil just sulks and dies every single year. I buy my basil at the store now and I've made peace with it.
- D
HandoutHandout 2: Cheat Sheet for Vegetable Gardening at Altitude
Handout 2: Cheat Sheet for Vegetable Gardening at Altitude
Print this, stick it on the fridge or the shed wall, get dirt on it. That's what it's for.
Frost Dates (Plan to These, Not the Seed Packet)
- Last spring frost: don't trust anything before May 15, and honestly, keep a cover ready through Memorial Day. Mine got flattened on Mother's Day my first year and I've never forgotten it.
- First fall frost: can show up as early as late September. Watch your max/min thermometer starting Labor Day.
- Seed packets are usually written for somewhere warmer than here. Ignore the dates printed on them and use the ones above.
The Thermometer Thing
Buy a cheap max/min thermometer, the kind that records the overnight low. Stick it right in the bed. Read it every morning with your coffee.
This one tool taught me more than any book did. It's not about the average for the county, it's about what actually happened in your yard last night.
Watering, Done Right
- Water deep and less often. Dry air out here will trick you into shallow daily watering, and that grows lazy, shallow roots.
- Check moisture by sticking a finger into the soil, not by eyeballing the surface. The surface lies.
- If your water's hard like mine, watch for white crust building up on the soil in raised beds by midsummer. That's mineral buildup, not disease. Don't panic and start treating for something that isn't there.
Raised Beds: Why I Push Them
Our native dirt here is heavy, alkaline, and the hard water makes it worse. A raised bed lets you control what's actually in the soil instead of fighting what you were handed. I will die on this hill.
Your First Year, Keep It Simple
- Buy transplants for tomatoes and peppers. Don't start from seed your first year. Our season's too short to spend four weeks nursing seedlings on a windowsill only to find out you did it wrong. Learn the garden first. Get fancy later.
- Direct-sow carrots, beans, peas once soil has actually warmed. Write the sow date on a popsicle stick and push it in the row. I lost half a carrot planting once because I guessed instead of writing it down. Seeds sitting in cold, wet soil just rot.
The Real Enemy Isn't Heat
Everybody worries about our hot, dry afternoons. That's not what kills your plants. It's a clear, calm night that dumps straight down to freezing while you weren't paying attention. Heat you can manage with water and shade cloth. A surprise 29-degree night takes out six tomato starts before breakfast. Ask me how I know.
Quick Reference Table
Situation What to do Nighttime low forecast under 40°F, plants not hardened off Cover with sheet, row cover, or bring pots in Soil feels dry 2 inches down Water deep, slowly, let it soak in White crust on soil surface Hard water mineral buildup, not disease. Scrape off top layer if it bothers you Unknown bug on your plants Photo it, don't guess. Ask me or call the extension office Seed packet says "plant after last frost" Cross out their date, write in May 15 When You Don't Know
If it's aphids or squash bugs, I can tell you what to do. Past that, I take a photo and admit I'm not sure, same as you should. The extension office is free and they're better at bugs than I am.
- D
WorksheetHandout 3: Your Frost Dates & First-Year Plan
Handout 3: Your Frost Dates & First-Year Plan
This is the worksheet, not the lecture. Fill it out as we go, or take it home and finish it with a cup of coffee. Either way, don't skip it. This is the thing that keeps you from doing what I did with those tomatoes.
- D
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Part 1: Know Your Dates
Write these down. Don't trust the seed packet, it was written for somewhere warmer than here.
My average last frost date (spring): ______________
My average first frost date (fall): ______________
My actual growing season length: ______________ weeks
Honestly, "average" is doing some work in that sentence. Ours can run late in May and early in September some years. Plan for the shorter season, not the optimistic one.
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Part 2: Get a Thermometer, Use It
Max/min thermometer placed in my bed on: ______________ (date)
Lowest reading so far: ______________
Did it surprise me? Y / N If yes, what did I expect instead: ______________
This is the single most useful five dollars you'll spend on this whole hobby. It teaches you your yard, not the county average.
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Part 3: Site Check
Hours of direct sun my planned bed gets: ______________
Native soil or raised bed? ______________
If native soil, what's it like when I squeeze a handful? ☐ Crumbles apart ☐ Holds a hard clump ☐ Something in between
Any white crust on the soil surface from past watering? Y / N (That's the hard water talking, not a disease. I learned that one the slow way.)
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Part 4: What I'm Planting, and How
For each crop, mark whether you're starting from seed or buying a transplant.
Crop Seed or Transplant Planting Window (based on MY frost dates) Tomatoes Peppers Beans Carrots Squash Other: ______ My rule for year one: buy transplants for tomatoes and peppers. Don't start them from seed on a windowsill your first year. Our season's too short to spend four weeks finding out you did it wrong. Learn the garden first.
Popsicle stick check: am I planning to write the sow date on a stick in the ground so I stop guessing later? Y / N
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Part 5: Watering Plan
How often do I think I'll water: ______________
How will I actually check if it needs water? ☐ Stick my finger in the soil ☐ Look at the surface (this lies to you, by the way) ☐ Other: ______________
Deep and less often beats a little bit every day. The dry air will trick you into shallow watering and shallow watering grows lazy roots.
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Part 6: My Honest Weak Spot
What am I already nervous about, or what did I get wrong last time?
______________________________________________ ______________________________________________
Mine's basil. Every single year. I've quit pretending I'll figure it out and I just buy it at the store now. Everybody's got one plant like that. Write yours down so you're not surprised in July.
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One last thing: if something in your bed looks wrong and you can't tell what it is, take a photo. Don't guess. I know aphids and squash bugs and that's about my ceiling too. Past that, the extension office is who to call, not me pretending.
HandoutHandout 4: Troubleshooting Guide
Handout 4: Troubleshooting Guide
Every one of these has happened in my own beds. Some of them happened more than once, because apparently I'm slow to learn. Find your problem below and try the fix before you panic and rip the plant out.
1. Tomato starts went in and now they're black and mushy. That's frost. Probably a clear night that dropped colder than you expected. Here, that can happen well into late May. Fix: don't plant before Memorial Day unless you've got frost cloth ready to throw on at night, and check that max/min thermometer every morning so you actually know your own yard's numbers instead of guessing.
2. Carrot seeds never came up, or only half did. I did this my first year. Direct-sowed too early, the seeds just sat in cold ground and rotted before they could sprout. Soil needs to actually be warm, not just "it's technically spring." Wait another week or two past when you think you should, and write the sow date on a popsicle stick so you're not relying on memory.
3. White crust building up on top of the soil. That's the hard water talking, not a disease. I noticed this on my raised beds by August and spent a while thinking something was wrong with the plants before I connected it to what was coming out of my hose. It's mostly cosmetic. Scratch the crust into the soil surface when you weed and it's not usually a big deal.
4. Plants look fine in the morning, wilted by 2pm. Honestly, this is normal here in July even with good soil moisture. Our air is so dry the leaves lose water faster than roots can pull it back up midday. Check soil moisture with your finger before you assume you need to water more. If it's damp a couple inches down, leave it alone.
5. Leaves look scorched or crispy on the edges. Usually underwatering, not sunburn, especially if it's spreading across the plant. Water deep and less often. A quick daily sprinkle trains roots to stay shallow and lazy, and shallow roots can't handle our afternoons.
6. Little green bugs all over the new growth. Aphids. Super common, not usually fatal. Blast them off with the hose, a few days in a row, and check for ladybugs before you spray anything. If it's something weirder looking, I'll be honest, I don't always know what I'm looking at past aphids and squash bugs. Take a photo and call the extension office rather than guessing.
7. Squash plant was thriving, now it's wilting all at once even though soil's wet. Could be squash bugs or vine borer. Look at the base of the stem for a small hole with something like sawdust around it. If you find that, it's probably too late for that plant, pull it and don't compost it. This is one I still take photos of and ask around about rather than pretend I've got it fully figured out.
8. Everything in the bed is thriving except the basil. Honestly, no advice here. I cannot keep basil alive to save my life. Everything else in my garden does fine and the basil just sulks and dies regardless of what I try. I buy it at the store now and I've made peace with it.
9. Started tomatoes and peppers from seed and they're leggy and weak. This is why I tell first-timers to buy transplants your first year. Our season's too short to spend four weeks troubleshooting a windowsill setup. Buy starts, learn the garden, get fancy with seed-starting your second or third year once you know what you're doing.
10. Plants look stressed even though you're watering and it's not too hot. Check for a cold night you weren't tracking. Everybody worries about our hot dry afternoons, but the real damage here usually comes from a clear night dumping to freezing when nobody was paying attention. That thermometer in the bed will tell you more than any book will.
When in doubt: water deep, check the thermometer, and don't trust the seed packet's dates. They were written for somewhere warmer than here.
- D
podcast_scriptClass podcast — episode 1
Audio coming soon — show notes below.
JESS: —okay so that's the part I want people to hear, because you just said it like it's nothing, "half of them rotted," and I feel like a new gardener would just quit.
DEBBIE: Well, I almost did. That was the carrots. I put the seeds in the ground way too early because I was excited, and the soil was still cold, and they just sat there and rotted instead of sprouting. The ones I planted a couple weeks later were fine. Same packet, same bed.
JESS: This is episode one of Vegetable Gardening at Altitude, by the way, in case anyone just wandered in mid-carrot-story. I'm Jess, I produce the class podcasts here at Utah Community Learning. Debbie Bean is teaching the class, and she is, I'll just say it, kind of relentless about this altitude thing.
DEBBIE: Honestly, somebody has to be. Everybody moves here, buys a seed packet, and follows the dates printed on the back like they're gospel. Those dates are written for somewhere warmer than here. Our last frost can sneak into late May. I've seen it hit late September on the other end too. If you plan around the packet instead of your own yard, you're planning around the wrong yard.
JESS: You have a story about this, right? The Mother's Day tomatoes.
DEBBIE: My first spring. A neighbor told me Mother's Day is when you plant tomatoes here, so I did, six little starts, all set out proud in my new raised bed. Two nights later it dropped to 29 degrees. I went out in the morning with my coffee and just stood there looking at these flattened black plants like they owed me money.
JESS: That's it, that's the exact face I imagine every time you tell this one.
DEBBIE: It's a good face. I don't recommend earning it though. That's the thing about here, everybody worries about the hot dry afternoons, and honestly those aren't the problem. It's a clear night in late May that dumps down to freezing while you're asleep. That's what actually kills your plants.
JESS: So if someone's listening and they're not even taking the class, what's the one thing they do differently this week because of that?
DEBBIE: Get a cheap max/min thermometer, the kind that records the low overnight, and stick it right in your garden bed. Not on your porch, not wherever, in the bed. Read it every morning for a couple weeks before you plant anything tender. It'll teach you more about your actual yard than any almanac will. My side yard runs colder than my front bed by a good three degrees, and I only know that because I started checking instead of guessing.
JESS: I love that it's such a cheap tool for something that expensive to get wrong.
DEBBIE: Six starts wasn't a fortune, but it stung. And it made me mad enough to actually start reading and taking notes, so I guess it paid off eventually. I've got a garden journal three seasons deep now, soil pH, sow dates on popsicle sticks so I stop guessing like I did with those carrots.
JESS: You mentioned Keith thought one of your drawings was a map.
DEBBIE: A squash leaf. I'm not an artist, I know that. But rough is fine, it just has to mean something to me later. That's the whole journal, really, evidence of what actually happened in my dirt, not what a book said should happen.
JESS: Okay, before we wrap, tell people what's coming in session two, because I know it's the one everybody asks about.
DEBBIE: Raised beds. Why I think they're basically non-negotiable here, and how to build one without overthinking it. Our native soil is heavy, it's alkaline, and the water makes it worse. I'll bring photos of the cold frame I built out of an old storm window too, that thing's ugly but it flat out works, and I've got about eleven pictures of it on my phone from every angle because apparently I was proud of it.
JESS: Bring the phone, bring the journal.
DEBBIE: Always do.
JESS: This has been episode one of Vegetable Gardening at Altitude. Debbie Bean, everybody.
DEBBIE: Go check your low temps before you plant anything. Save yourself a bad morning.
podcast_scriptClass podcast — episode 2
Audio coming soon — show notes below.
JESS: —okay but that's the part I don't think people believe. Like, actually white crust.
DEBBIE: Actual white crust. On top of the soil. I thought it was a fungus at first, I was ready to panic about it in the journal and everything.
JESS: And it was just your water.
DEBBIE: It was just my water. Hard well water, and here that's super common, so if you're on well water or even city water with a softener situation, you might see the same thing by August. It's mineral buildup. It's not a disease, it's just what happens when hard water sits and evaporates off the top of a bed all summer.
JESS: So what do you do about it.
DEBBIE: Honestly, not much, you just don't panic. I scratch the crust into the top inch of soil when I'm weeding and move on. If it's really bad you can flush the bed with a deep watering to push the salts down past the root zone. But the first year I didn't know what I was looking at and I lost a little time being worried about the wrong thing.
JESS: Which, side note, is basically the theme of this whole class.
DEBBIE: It kind of is. Half of gardening here is just learning what's normal for our dirt and our water and our air, instead of panicking because a book says something different.
JESS: Okay, speaking of learning what's normal — tell the ridge story. I love the ridge story.
DEBBIE: The Wasatch one?
JESS: Yeah.
DEBBIE: So a few summers ago I hiked up one of the ridges, I won't pretend I remember exactly which trail, June, still some snow in the shady patches. And I'm walking along and there's these scrubby little plants just going for it. Rocky soil, way less water than I give my raised beds, elevation way higher than my yard. And they're not being babied by anybody. Nobody's out there with a soaker hose.
JESS: And that messed with you.
DEBBIE: It kind of rearranged something for me, yeah. I came home and I was way less precious about things. I'd been checking on seedlings like they were sick relatives. After that hike I started thinking, some of this stuff wants to work if you just get out of its way. Give it what it actually needs and then leave it alone.
JESS: Which is not nothing, coming from you, because you are a checker. You check things.
DEBBIE: I am a checker. But there's checking and there's hovering, and I'd been hovering.
JESS: Okay, so for somebody listening who isn't in the class and wants one thing to actually do this week.
DEBBIE: Get a cheap max/min thermometer and stick it in your garden bed. Not your porch, not the front of the house facing the street. In the bed, where your plants actually are.
JESS: And that tells you what.
DEBBIE: It tells you your low for the night, right there in your yard, which is not the same number as the general forecast for the county. My yard sits a little low, gets cold air pooling in it, and I didn't know that till I had the thermometer telling me every morning. That's the number that kills your tomatoes, not the average.
JESS: Not the daytime heat everybody worries about.
DEBBIE: Everybody worries about the hot afternoons, and honestly that's rarely the thing that gets you here. It's a clear night in late May when you weren't paying attention and it dumps down to freezing while you're asleep. The thermometer teaches you your yard. Cheap ones are ten, fifteen bucks. Way cheaper than replacing six tomato starts.
JESS: Which you know from experience.
DEBBIE: I know from extremely specific experience, yes.
JESS: Okay, last thing before we wrap. Next session.
DEBBIE: Next time we're doing beds and soil, actual hands in dirt. We're building a raised bed together, talking about what to put in it, and I'm bringing my cold frame so people can see the ugly thing in person instead of just hearing me describe it.
JESS: You're bringing the cold frame? To the room?
DEBBIE: I'm bringing the cold frame. It's not glamorous but it works, and I want people to see that it doesn't have to be pretty to do its job.
JESS: I respect that so much. Alright, that's it for this one.
DEBBIE: - D
podcast_scriptClass podcast — episode 3
Audio coming soon — show notes below.
JESS: —okay so that's the part I wanted to ask you about, because you said something in prep that I haven't stopped thinking about, which is that your beans made you smug.
DEBBIE: They did. Honestly, they did.
JESS: Tell it for the podcast people.
DEBBIE: So this was, I think my second year. Bush beans, just a regular row of them, nothing special. And they took off. I mean they produced way more than the four of us could eat. I'm talking grocery bags of beans sitting on my counter, and I'm googling "how many beans is too many beans."
JESS: Is that a real search you did.
DEBBIE: It's a real search. And I ended up just bagging them up and taking them over to Brittany and Bailey. And I stood on their porch handing over these bags like I'd done something. Like I'd personally invented the bean.
JESS: You had not invented the bean.
DEBBIE: I had not invented the bean. But it was my first real proof that this thing works, that you put seeds in dirt here and something comes out the other end that's actually good, actually more than you need. After the tomato disaster my first spring, that was a big deal to me. I felt smug and I'm not going to apologize for it.
JESS: I love that. Okay, so today's episode is technically about watering, right, that's the topic.
DEBBIE: That's the topic, and I want to give people one thing they can use whether or not they ever take my class. Water deep and less often. Not a little bit every day.
JESS: Why not every day, that seems like the safe choice.
DEBBIE: It feels safe. But our air here is so dry it fools you. You water a little bit, the surface looks wet, you feel good about yourself, and you walk away. Meanwhile the water hasn't gone anywhere near the roots. It just sat in the top inch and evaporated by afternoon. And the plant's roots stay shallow because that's where the water is, so the whole plant gets lazy and fragile.
JESS: So what do you actually do.
DEBBIE: I stick my finger in the dirt. Not a fancy tool, just my finger, a couple inches down. If it's dry down there, I water, and I water slow and deep so it actually soaks in instead of running off. If it's still damp, I leave it alone. Two, three times a week deep beats every day shallow, every time.
JESS: That is genuinely useful and I feel like I've been doing it wrong my whole life.
DEBBIE: Most people are. It's not a knock on anybody, the dry air here just lies to you about what your soil's doing.
JESS: Okay, before we run out of time, I want you to tell people what's coming in the next session, because I saw the outline and there's a thermometer involved.
DEBBIE: There is a thermometer involved. Next time we're talking about cold nights, which honestly matter more here than the hot days everybody worries about. People are so focused on our dry afternoons killing things, and meanwhile the thing that actually gets you is a clear night in late May that drops straight to freezing while you're asleep.
JESS: Like your tomatoes.
DEBBIE: Like my tomatoes. Six of them, mid-May, dead by morning because I planted on the date a neighbor told me to instead of paying attention to what my own yard was doing. So next session I'm bringing a cheap max and min thermometer, the kind that records the low overnight, and I'm going to show everybody how to put one in their own bed and actually read their own yard instead of trusting some average for the whole county.
JESS: I like that it's cheap. That's a very Debbie detail.
DEBBIE: It's like eight dollars. You do not need anything fancy. You just need to actually know what's happening in your own dirt instead of guessing.
JESS: Perfect. Okay, that's the episode. Stick your finger in the dirt, don't trust the seed packet, and we'll see everybody next week for cold nights and thermometers.
DEBBIE: See you then. And bring a coat, the classroom's always freezing.
FlashcardsPrintable flashcards — Vegetable Gardening at Altitude
Print it, fold it, stick it on the fridge.
Vegetable Gardening at Altitude — Flashcard Set
Cut these apart along the lines, or don't. I've had a stack of these held together with a binder clip in my garden bag for two years and they work fine loose. Hole-punch the corner if you want to keep them on a ring.
FRONT BACK Why does the seed packet date lie to me here? It's written for someone at a lower elevation with a longer, warmer season. Your last frost is later, your first frost is earlier, and "days to maturity" assumes conditions you don't have. Treat the packet as a starting guess, not a promise. How do I figure out sun vs. shade honestly? Watch the spot for a full day, not ten minutes. Note actual hours of direct sun, not "it seemed bright." Most vegetables want 6+ hours. If you're rounding up to convince yourself, you already know the answer. What's the cheap max/min thermometer trick? Buy a max/min thermometer (a few dollars at any hardware store) and leave it in your garden. It records the overnight low even while you're asleep. That's the number that kills your tomatoes, not the daytime high you felt when you were out there planting. How do I start a garden journal I'll actually keep? Keep it stupid and physical — a cheap notebook by the back door, not an app. Write the date, what you did, and what the thermometer said. Three sentences is enough. Mine's three seasons deep and half the pages are just weather and regret. Why do you die on the raised-bed hill? Because our native soil is usually alkaline, compacted, or both, and you can spend three years fighting it or one weekend building a box and filling it with soil that already works. I know which one I'd pick twice. What actually goes in a raised bed? A mix, not straight bagged soil and not straight compost. Roughly equal parts topsoil, compost, and something coarse like coarse sand or perlite for drainage. Straight compost sounds generous and just gives you soggy roots. What's the white crust problem? That's salt from hard water and alkaline soil, working its way up as water evaporates. It's not mold, it's not a disease — it's minerals. Deep, less-frequent watering helps flush it below the root zone instead of building it up top. How do I test pH without overthinking it? A cheap drugstore soil pH kit or a basic meter is plenty. Test two or three spots, average them, done. You don't need a lab. You need to know if you're way off, not exactly how off. Why does cool-season vs. warm-season matter so much here? Our season is short and our nights stay cold late. Cool-season crops (peas, lettuce, spinach) can go in weeks before you'd dare put out a tomato. Mixing up the two categories means you're either wasting good early weeks or losing plants to cold. Why buy tomato and pepper transplants instead of starting from seed? Our season's too short to start them from seed outdoors, and starting indoors well takes equipment and timing most first-timers don't have yet. Buy started plants, put your energy into the parts of the garden where seed actually makes sense. What direct-sows well in a short season? Peas, beans, beets, carrots, lettuce, spinach, radishes. Fast, cool-tolerant, and forgiving of a short window. These are your seed-packet crops. How do I space beds without guessing? Use the spacing on the seed packet or plant tag as a floor, not a suggestion to shrink. Crowded plants compete for water and light and you'll spend all summer wondering why nothing's thriving. When in doubt, go wider. When is it actually safe to set out tomatoes? Not on the date a neighbor tells you. Wait until your nighttime lows are reliably above 50°F, using your own thermometer log, not the calendar. Mother's Day is a tradition, not a forecast. How do I direct-sow carrots, beets, and beans without rotting the seed? Don't overwater right after sowing — keep the soil evenly moist, not soaked, until germination. Cold, wet soil is what rots seed, not cold soil alone and not wet soil alone. What's hardening off, and do I really need to do it? Yes. It's the week of moving transplants outside for a few hours a day, gradually increasing time and sun exposure, before planting them for good. Skip it and you'll watch perfectly healthy starts scorch or wilt in a day. What's a decent trellis for peas and beans? Anything vertical and sturdy — cattle panel, string between stakes, an old fence section. The point isn't beauty, it's keeping the pods off the ground and the airflow good. How do I water deep and less often, and check it? Water long enough that it soaks down 6-8 inches, then let the top few inches dry before watering again. Check by sticking a finger in to the second knuckle. If it's dry there, water. If it's damp, leave it alone. How do I build a cold frame from scrap? An old window sash on top of a bottomless box, angled toward the sun. Scrap lumber and a salvaged window is all it takes. It buys you weeks on both ends of the season. What frost protection can I do in five minutes? Row cover, an old bedsheet, even upside-down buckets over individual plants. Toss it on before a cold night, pull it off in the morning. Not elegant. Works. How do I get plants through our hot, dry afternoons? Mulch to hold moisture, water in early morning so roots have it before the heat hits, and don't panic if leaves droop midday and perk back up by evening — that's normal, not a crisis. Aphids and squash bugs — when do I just ask the extension office? Once you've tried the basics (water spray, hand-picking, checking undersides of leaves) and it's still spreading, call. They see your exact bugs in your exact climate every year and it's a free call. Don't guess with a chemical you don't need. How do I know when to harvest instead of waiting too long? Check daily once a crop looks close, not weekly. Beans go tough, zucchini goes to baseball bats, greens go bitter — all fast, all past the point of no return. When in doubt, pick a little early rather than a little late. How do I read my season back and plan next spring? Go through the journal in fall: what died and when, what the thermometer said the week it happened, what you'd move or skip. Next spring's plan is really just this year's notes, edited. ---
One aside: the crust on your pots and beds isn't a sign you're doing something wrong — it's a sign you're gardening here. I used to scrub it off like it was my fault. It's just the water. Flush it, don't fight it.
Memory helpsMnemonics & memory helps
Print it, fold it, stick it on the fridge.
Mnemonics & Memory Helps ### Vegetable Gardening at Altitude — handouts to fold and keep in your garden journal
I'm not a fancy person and these aren't fancy tricks. They're the dumb little sayings I actually mutter to myself in the garden, because apparently that's what it takes for information to stick in my particular head. Steal them. Change them. Just use something, because you will forget, and forgetting is what kills tomatoes here.
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1. "The packet is from somewhere else. You are not somewhere else."
Unpacks: Why seed packet dates lie to you at altitude.
That packet was written by a company that tested its "days to maturity" and "last frost" guess in a place that is not 6,500 feet up with cold air pooling in your yard at night. The packet isn't wrong, exactly — it's just talking about a different garden that isn't yours. Every time you read a date on a packet, mentally add "...somewhere else" to the end of the sentence. That little pause is what reminds you to check your own frost dates instead of trusting the cardboard.
2. "Watch before you plant. An hour, four times, beats a guess."
Unpacks: Sun, shade, and being honest about your yard.
People plant where they think there's sun. Go outside four separate times — morning, midday, mid-afternoon, evening — and actually look. I count "watch, watch, watch, watch" on my fingers like a weirdo. Four checks, one honest map of your yard. Skip this and you'll spend all summer wondering why your tomatoes are sulking in what turns out to be four hours of dappled shade under the neighbor's spruce.
3. "High and low, that's all I need to know."
Unpacks: The cheap max/min thermometer trick.
A basic max/min thermometer records your highest and lowest temp since you last reset it — that's the whole tool. My little rhyme is just there so I remember to actually reset the thing each morning, which is the part everybody forgets. High and low, reset, go. If you don't reset it, you're just staring at old news.
4. "Didn't write it? Didn't happen."
Unpacks: Starting a garden journal you'll actually keep.
This is the one I'm strictest about, because I have three seasons of proof it works and about zero years of proof that "I'll remember" works. It doesn't have to be pretty. Mine has coffee rings and a pencil drawing of a leaf I still can't name. But if you didn't write down the frost date, the seed source, the thing that ate your beans — it didn't happen, as far as next year's garden is concerned. You'll make the same mistake fresh, like it's new.
5. "Beds don't lie."
Unpacks: Why I'll die on the raised-bed hill.
Our native dirt here is often compacted, alkaline, and about as welcoming to roots as a parking lot. A raised bed lets you just... start over, above all that, with soil you control. "Beds don't lie" is my shorthand for the whole argument: in-ground gardening here means fighting your existing soil forever, and a raised bed means you stopped arguing with the ground and built your own instead. Every time I get into it with someone who insists in-ground is "more natural," that's the phrase running in my head.
6. "Compost, top soil, grit — that's it."
Unpacks: What actually goes in a raised bed (roughly equal parts compost, a decent topsoil, and coarse grit or coarse sand for drainage).
Three words, three scoops. People way overthink bed mix — bagged this, boutique that. Say the three words while you're shoveling and you'll build a mix that drains, feeds, and doesn't turn into a brick by August.
7. "White crust, don't adjust — flush and mulch instead."
Unpacks: Alkaline soil, hard water, and the white crust problem.
That white crusty stuff on your soil surface is mineral buildup from our hard, alkaline water evaporating and leaving salts behind. The instinct is to panic and start dumping amendments on it. Don't adjust — flush (a deep watering to push salts down past the root zone) and mulch (to slow evaporation so it doesn't just creep back up). The rhyme keeps me from overreacting and dumping sulfur on something a good soak would've fixed.
8. "Test, don't stress."
Unpacks: Simple pH testing without overthinking it.
A basic $10-15 home pH kit or meter, tested once a season, tells you plenty. You do not need a soil science degree. Test, don't stress is my reminder that this is a five-minute chore, not a research project — get the number, note it in the journal, move on with your life.
9. "Cool likes the shoulder, warm wants the middle."
Unpacks: Cool-season versus warm-season crops, and why the distinction matters here.
Cool-season stuff (peas, spinach, lettuce, brassicas) wants the "shoulders" of our season — the cooler stretches in spring and fall — and will actually bolt or suffer in high summer heat. Warm-season stuff (tomatoes, peppers, squash) wants the hot middle and can't handle our late and early frosts at all. Picture the growing season as a sandwich: cool crops are the bread, warm crops are the meat in the middle. Plant accordingly.
10. "Buy the babies, grow the rest."
Unpacks: Why to buy tomato and pepper transplants instead of starting from seed.
Tomatoes and peppers need a long, warm head start indoors that most of us don't have the light or patience for, and a greenhouse-grown transplant already did that hard part for you. "Buy the babies" — let a professional get them through infancy — "grow the rest" — everything else in your garden, direct-sow it yourself. This one saves people so much springtime grief.
11. "Cold ground, cold shoulder — May 20th, more or less."
Unpacks: When it's actually safe to set out tomatoes here.
The rhyme's a placeholder for your real last-frost date (mine's roughly Memorial Day-ish, yours might differ — check your journal and local extension numbers). The point of the rhyme isn't the date, it's the reminder that ground temperature and frost risk give tomatoes the cold shoulder if you rush them, no matter how nice one warm afternoon feels. I learned this one the hard, dead-tomato way.
12. "Carrots and beets like it a little slow. Beans hate wet feet — let them go."
Unpacks: Direct-sowing carrots, beets, and beans without rotting the seed.
Carrots and beets are slow, patient germinators — keep the soil consistently and gently moist, don't drown them, don't give up on them at day six. Beans, on the other hand, will rot in soil that's too wet or too cold — they want warmer soil and then to mostly be left alone. Two totally different personalities, one little couplet to keep them straight.
13. "A week of going outside, before it lives outside."
Unpacks: Hardening off transplants.
Whether you bought your tomato starts or grew your own lettuce seedlings, they've been living the soft indoor life and need about a week of graduated outdoor exposure — a couple hours the first day, building up — before they move out permanently. "A week of going outside, before it lives outside" is just a reminder that this isn't optional and isn't a one-day thing.
14. "If it climbs, give it a reason to."
Unpacks: Trellises for peas and beans.
Peas and pole beans will climb whatever you offer, and giving them vertical space early — before they flop everywhere and tangle — saves you a summer of wrestling a vine pile. Set the trellis up at planting, not after you notice they need it. If it climbs, give it a reason to, before it invents its own bad reason.
15. "Second knuckle, dry — deep drink time."
Unpacks: Watering deep and less often, checking with your finger.
Stick your finger into the soil up to the second knuckle. If it's dry there, water deeply and slowly until it soaks down, then leave it alone for a few days rather than sprinkling shallowly every evening. Shallow, frequent watering trains roots to stay lazy near the surface, where they cook in our heat. Second knuckle, dry, deep drink — check it, don't guess it.
16. "Junk drawer plus old windows equals free spring."
Unpacks: Building a cold frame from scrap.
A cold frame is just a bottomless box with an old window or clear plastic on top, catching sun and trapping heat like a mini-greenhouse. You don't need to buy a kit — scrap lumber, an old storm window, some hinges. The phrase is a reminder that this is a scrap-bin project, not a shopping trip, and it can buy you weeks on either end of the season.
17. "Sheet, not blanket — five minutes, not fuss."
Unpacks: Row cover and frost protection you can throw on fast.
Lightweight row cover (or even an old bedsheet) draped loosely over plants before a cold night traps ground heat and can save you several degrees of protection. "Sheet, not blanket" reminds me it should be light and breathable, draped loosely, not weighing plants down — and the whole job should take five minutes at dusk, not a production. If it's taking longer than boiling an egg, you're overdoing it.
18. "Morning sun, afternoon shade, or afternoon shade cloth."
Unpacks: Getting plants through our hot, dry afternoons.
Our afternoon sun is intense and drying, especially in July and August. When you're placing tender crops, or when you're improvising with shade cloth on a rough day, remember the goal: morning light is a gift, afternoon blast is a tax. Either site your beds for natural afternoon shade, or throw up shade cloth to fake it.
19. "Squish, spray, or send an email — in that order."
Unpacks: Aphids, squash bugs, and when to call in the extension office.
Small aphid problem — squish it with your fingers or blast it off with water, done. Bigger problem — an appropriate spray, insecticidal soap, that kind of thing. Genuinely stumped, or it's spreading fast and you don't recognize it — that's when you email or call your local extension office, who will identify it for free and tell you the actual fix instead of you guessing off the internet at 11pm. Squish, spray, email — don't skip straight to panic.
20. "If you're asking, it's already answered."
Unpacks: Knowing when to harvest so you don't wait too long.
If you're standing in the garden asking yourself "is this ready?" — it almost always is, or was, a couple days ago. Waiting for some perfect confirmed moment usually means you miss the window and get tough beans or bitter lettuce or a zucchini the size of a baseball bat. This one's less a fact to remember and more a nudge to trust your gut and pick the thing.
21. "Last season's notes are next season's shortcut."
Unpacks: Reading your journal back and planning next spring.
The whole point of the journal from #4 is this moment — sitting down in late fall or winter with a cup of coffee and actually rereading what you wrote. What died, what thrived, what date the frost actually hit versus what the almanac guessed. You're not writing the journal for this year. You're writing it as a letter to the person who'll be standing in the same dirt next May, which is you, but a year dumber if you don't read it.
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Print this, fold it into your journal, and cross off the ones that don't work for your brain. The goal was never the cute phrase — it's whatever gets you to stop and check instead of guessing. I still say "high and low, that's all I need to know" out loud in my own backyard like a crazy person, and my tomatoes have never cared.
Cheat sheetOne-page note card — Vegetable Gardening at Altitude
Print it, fold it, stick it on the fridge.
VEGETABLE GARDENING AT ALTITUDE — FRIDGE CARD
Debbie Bean's Community-Ed Class. Tape this inside a cabinet door and actually use it.
Topic What You Need to Know Seed packet dates Written for lowland growers. Ignore the "days to maturity" math until you've adjusted for our shorter season. Add a couple weeks in your head. Frost-free dates Last frost here is usually early-to-mid June, not Mother's Day. First fall frost can hit by mid-September. That's your real growing window — plan around it, not the seed packet. Cheap thermometer trick Buy a $10 max/min thermometer, stick it in your garden bed. Check it every morning for two weeks before you trust any "safe" date someone gives you. Your yard has its own microclimate. Sun/shade honesty Watch a spot for a full day before you plant it. "Part sun" on a plant tag means nothing if your fence throws shade from 2 to 6pm. Six hours direct minimum for tomatoes and peppers. Raised beds Yes, always, no argument. Our native soil is compacted clay or gravel fill from construction. A raised bed lets you control what your roots actually sit in. What goes in the bed Roughly 60% quality topsoil, 30% compost, 10% coarse sand or perlite for drainage. Don't just dump bagged garden soil and call it done. Alkaline soil / hard water Our water and soil run alkaline. White crust on pots and soil surface is mineral salt buildup, not disease. Flush pots occasionally with extra water to push salts down past the roots. pH testing A $15 soil pH kit from a garden center is plenty. You're aiming for 6.0–7.0 for most vegetables. Don't overthink it past that — test once a season, not once a week. Cool vs. warm season Cool-season crops (peas, lettuce, spinach, brassicas) go in weeks before your last frost. Warm-season crops (tomatoes, peppers, squash, beans) wait until soil and night air are reliably warm. Mixing this up is the #1 first-year mistake. Tomatoes & peppers Buy transplants. Our season is too short to start these from seed outdoors, and windowsill starts are usually too weak. Spend the money, buy the six-pack. Good direct-sow crops Carrots, beets, peas, beans, radishes, lettuce, spinach. These don't mind our season length and don't like being transplanted anyway. Spacing Use the seed packet spacing as a minimum, not a target — our intense sun and dry air mean crowded plants stress out faster. When in doubt, give it another inch. Setting out tomatoes safely Not just "after last frost" — wait until nighttime lows stay above 50°F consistently. One cold night can stall a tomato plant for two weeks even if it doesn't kill it. Direct-sowing without rot Keep seed rows evenly moist, never soggy, until germination. A light layer of straw or fine mulch over the row helps hold moisture without drowning the seed. Hardening off Give transplants 5–7 days outside in increasing sun/wind before planting — start with an hour in shade, work up to a full day. Skipping this is how you lose a whole flat to sunscald or wind in one afternoon. Trellising peas/beans Vertical from day one. Our wind will flatten a sprawling vine. A simple cattle-panel arch or string trellis saves the harvest and your back. Watering Deep and infrequent beats daily sprinkling. Stick a finger two inches down — if it's dry, water; if it's damp, walk away. Shallow frequent watering breeds shallow, weak roots. Cold frame Old storm window + scrap lumber box = free season extension on both ends. Prop it open on sunny days so you don't cook your seedlings. Frost protection, five minutes Keep old sheets or row cover fabric staged in the garage all spring and fall. Drape over plants before a cold night, remove in the morning. Takes less time than making coffee. Hot dry afternoons Mulch everything. Water in early morning, not midday. Afternoon sun here is intense even when the air feels mild — plants lose water fast. Pests Aphids: blast with water first, don't panic. Squash bugs: check under leaves for egg clusters and squish them. If you're not sure what you're looking at, call the extension office before you spray anything. Harvest timing Don't wait for "perfect." Zucchini, beans, and peas go from ready to overgrown in about two days at altitude sun intensity. Pick a little early rather than a little late. Season-end notes Before you clean up in fall, write down what worked, what date things actually ripened, and what you'd move next year. Future-you will not remember this in March. ---
You already killed something your first year — I did too, six tomato plants at once. That's not failure, that's data. Write it down and plant again.
Around the web
Sites we keep coming back to. Some picked by your instructor, some shared in class.
- Vegetable (Wikipedia) ↗
A good baseline overview if you want to see how vegetables are classified and grouped by plant family, which matters for rotation planning.
- Frost (Wikipedia) ↗
Worth a read since frost timing is basically the whole game when you're gardening at altitude.
- Growing season (Wikipedia) ↗
Explains the concept behind why our short growing season here forces so many of the choices we make in this class.
- USU Extension ↗
This is our own state's extension service, and their vegetable production guides are written specifically for Utah's soils and climate.
- USU Extension Frost Free Dates ↗
I send everyone here first thing so they know their local last frost date before they plant a single seed.
- Colorado State University Extension ↗
Colorado's extension deals with a lot of the same high altitude, short season headaches we have, so their guides translate well to our area.
- The Old Farmer's Almanac Growing Guides ↗
A reliable, no nonsense reference for basic planting and care info on individual vegetables when you just need the quick facts.
Videos worth your time
Hand-picked by your instructor, with notes on what to watch for.
- High Altitude Vegetable Garden BasicsHigh Country Conservation Center
Watch this one first for the big picture on what alpine vegetable gardening actually requires before you plant anything.
- What Grows & Doesn't Grow at High AltitudeColorado Mountain Living
Notice how the presenter compares which crops actually thrived versus failed partway through the season at altitude.
- Essential High Elevation Gardening Tip to Increase YieldColorado Mountain Living
Pay attention to the single yield-boosting tip since it targets the exact temperature swings that trip up high elevation gardens.
Practice corner
6 quizzes and 2 games. Playable by anyone, no account needed.
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