The flat wash: one even color, no drama
Okay. Supplies, paper, taping, ruining a page. You've done the warm-up. Now we get to the thing that actually holds up every painting you'll do after this: the flat wash.
A flat wash is just one color, spread evenly across an area, with no streaks and no blotches. That's it. Sky, water, a wall in shadow, the side of a barn. Half of landscape painting is just flat washes stacked on top of each other, so this is worth doing slow and doing a bunch of times.
What you need on the table
- Your taped-down cheap paper
- One color, mixed bigger than you think you need
- Your flat brush (the round works too, but flat is easier to learn this on)
- A tilted surface — I prop my board on a book, maybe a 20 degree angle
- A paper towel, dry, sitting right by your hand
That tilt matters more than people expect. Water and pigment want to run downhill a little, and we're going to use that instead of fighting it.
The actual steps
Mix more paint than feels reasonable. This is the number one thing beginners get wrong. You mix a tiny puddle, run out halfway across the paper, and have to remix mid-wash. Now you've got two batches of slightly different color and a visible seam. Mix a puddle that looks embarrassingly big. You will not use all of it. That's fine.
Load the brush heavy. Not dripping everywhere, but heavy. A too-dry brush is the other way people wreck a flat wash — it drags and skips and you get patchy paper showing through.
Start at the top, one horizontal stroke, corner to corner. Don't go back over it. Just lay it down and move on.
Go back to the bottom edge of that stroke and do the next one, slightly overlapping. The tilt means a little bead of wet paint collects along the bottom edge of your stroke. That bead is your friend. You just pick it up with the next stroke instead of dipping the brush again right away.
Keep going down the page, same rhythm, same speed. Don't slow down to "fix" anything. Fixing is what causes streaks. If a stroke looks a little uneven, the next stroke usually blends it out anyway.
At the very bottom, your brush will have extra water sitting there. Touch your barely damp (not wet) brush to that bottom edge, or dab it gently with the corner of your paper towel, and it lifts the excess so you don't get a dark tideline where it pooled.
That's the whole move. Top to bottom, don't look back, let gravity help.
Where it goes wrong, and why
Streaks usually mean your brush went dry partway through and you kept going anyway. Reload sooner than you think you need to.
Blotchy dark spots mean you paused too long between strokes and the edge started to dry before the next stroke picked it up. Remember, this is Utah County. Our air is dry, elevation's around 4,600 feet here in American Fork, and washes set up fast. What a tutorial filmed in some humid state tells you about timing is basically fiction for us. You've got less time than they think you do. Work a little faster than feels natural.
A hard dark line at the bottom is that pooled bead drying without you dealing with it. Lift it with a damp brush or towel corner before you walk away.
None of these ruin the painting. They're just what a flat wash does when it's still learning you. Mine still do this sometimes.
A confession about texture, since we're here
I want to say something now that'll save you money and a little embarrassment later. There's a salt technique — you sprinkle coarse salt into a wet wash and it pushes the pigment away as it dries, leaves these little starburst textures. Looks great for skies, snow, that kind of thing.
I got a video-tutorial version of this once, got excited, and dumped way too much salt on a sky wash. Like, a genuinely alarming amount. It came out looking like an actual blizzard hit the painting. Wrong call for what I was going for that day, total mess. But I liked the effect enough that I still keep a jar of coarse salt in my kit, and now I use about a tenth of what I used that first time. Learn from that. A little goes further than you think, with salt and honestly with a lot of watercolor technique.
We're not doing salt today though. Today is just flat, plain, even color. Get bored with it. Boring is the goal.
My honest opinion here: a little unevenness in a flat wash is not a tragedy. Real skies aren't perfectly flat either. But you want to be able to make it even on purpose before you start letting it get loose on purpose. Control first, then break the rules.
Before next time
Do at least four flat washes before we meet again — same color's fine, doesn't need to be pretty. I want your hand to know this rhythm without you thinking about it.