That Lettuce Stump? Don’t Trash It. Regrow It.

You buy a lettuce. You strip the leaves. You toss the little stump at the bottom in the bin.

Stop doing that.

That stump is a free second lettuce. It just hasn’t grown yet.

Here’s the part people don’t believe until they see it: lettuce is fast. Plant a stump on Monday and you’ve got new leaves poking up by the weekend. It’s the instant gratification crop. Perfect for impatient people. So, me.

Iceberg, butter, romaine. Doesn’t matter. They all regrow from the base. Two lettuces, one price.

If you’re picking one to start with, go romaine. It’s the most forgiving and the most fun to watch. If you’ve ever wondered how to grow romaine lettuce on a windowsill, the answer is: you barely do anything.

The base does the work.

The one thing you have to get right at the store

This is the whole trick, so pay attention.

Buy the freshest lettuce you can find. And buy a whole one with the base still attached. That pale chunk at the bottom where the grower sliced it off the stem? That’s the engine. No base, no regrow.

Limp, sad, sat-in-the-fridge-for-a-week lettuce won’t bother. Fresh and firm will go for you.

How to regrow lettuce in water (start here)

This is the easy method and the one I’d start with. You get to watch it happen, which is half the fun.

1. Cut your lettuce about an inch up from the bottom. Eat the leaves like normal.
2. Keep the base. That stubby core with the cut stalk.
3. Set it cut-side up in a small bowl with about half an inch of water.
4. Park it on a bright windowsill.

That’s it.

New leaves push up from the center in a few days. Change the water every couple of days so it stays clean. Skip that and it turns into a science experiment you didn’t want.

Here’s the honest catch. Water alone gets you a small, tender flush of leaves and not much more. Good for a sandwich. Then it stalls. To get a real plant, you move it to soil.

How to grow lettuce from the base in soil

Water gets it started. Soil keeps it going.

Once you see roots forming on the bottom of the stump, plant it.

You’ll need:

• Your sprouted lettuce base
• A plant pot with a drainage hole
• Peat-free, general-purpose potting mix

Sit the base in the soil so the roots are buried and the new leaves sit at the surface. Water it in. Put it somewhere sunny.

Grow lettuce in a container indoors, a pot out on the patio, or straight into a garden bed. Lettuce isn’t fussy about which. A container on a sunny windowsill is the no-yard-needed option and works fine.

It wants full sun but it’ll put up with some shade, so a less-than-perfect spot still works.

Keep the soil damp. Pick outer leaves as you need them and let the center keep cranking out new ones.

What you’ll actually get

Let me level with you so you’re not let down.

Your regrown lettuce comes back as loose, upright leaves. Tasty ones. But it won’t rebuild that tight supermarket ball, especially with iceberg and the other firm-headed types.

That dense head is a one-time thing the original plant did. You’re getting a cut-and-come-again leaf supply instead.

That’s not a downgrade. That’s better, in my book. Loose leaves are exactly what you want for salads and sandwiches, and you snip what you need instead of watching half a head rot in the crisper drawer.

You bought one lettuce. Now you’ve got leaves coming back for weeks.

Cut it high. Bowl of water. Windowsill. Go check the store-bought one in your fridge right now and see if it still has its base. If it does, you know what to do tonight.