Direct Seeding Lettuce in the Garden and How to Thin Lettuce Seedlings: By Picking the First Salad of the Season!

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Baby Tom Thumb Lettuce in the Greenhouse

Back on February 20th, I scattered a spot about two feet square with Tom Thumb lettuce seeds leftover from 2008, sprinkled a thin layer of compost over them, and watered well. Because lettuce seeds don't seem to keep well for me, I sowed them more thickly than I normally would. Next to it, I scattered the rest of a packet of 2008 Winter Lettuce Mix in about the same size area.

On the other side of the Tom Thumb I direct seeded a small patch of mache (corn salad), which is one of the most (if not the most) cold tolerant salad greens you can grow. I've had volunteer mache sprout up in the greenhouse in the middle of winter. I figured I was probably pushing my luck planting in the greenhouse in late February, though, because mache doesn't like the heat, and it will quickly warm up to 100 degrees in there when the sun is shining. No matter—the 2008 seeds were a no show anyway. I've ordered more and will try again in the fall, probably sowing half the seeds in the greenhouse and half outside in a raised bed. I adore mache's nutty flavor and delicate rosettes of leaves.

I had much better luck with the lettuce seeds. It was a slow start sprouting (as of the February 28th snowstorm there was no sign of anything coming up yet), but that wasn't surprising given how cold the soil was. A lot of times you're actually better off planting early spring crops like peas a week or two later than you think you should because they'll sprout faster and then catch right up to the earlier planted seeds, which is very good news for gardeners like me who are perpetually behind with everything. This is probably what happened with the lettuce.

As you can see, the Tom Thumb lettuce came up nice and thick, and on April 6th I picked enough tender baby plants to make a small, simple salad. It was wonderful. I'm a sucker for any butterhead variety, and while I've grown this type before, some quick fact checking in my seed catalogs has made me realize that I need to give it a little extra attention this year to find out just what this stuff does when given the space.

Pinetree Garden Seeds (where these seeds are from) says that Tom Thumb (47 days) "actually produces a full butterhead in a relatively short period of time. Six to seven inch heads have firm structure and compact habit. Leaves are dark green and the entire head wil make a large salad for one." This year Pinetree started labeling all of their heirloom varieties, but Tom Thumb isn't marked as one.

The Baker Creek Heirloom Seeds catalog, however, describes Tom Thumb as an heirloom lettuce that dates back to the 1850s and "makes small cabbage-like green heads, only 3" to 4" across." They say it's very tasty and "a winner for classy markets!"

I don't recall the leaves ever being particularly dark green, but maybe I just never paid attention. And now I'm curious about the size. In order for these plants to form those soft butterheads and reach maturity, though, they'll need a lot more space. Instead of thinning out lettuce plants when they've barely sprouted, I wait until they're big enough to eat. Then I pull some of plants up, gently tearing off the roots as I go, which means no dirt in the kitchen and tasty snacks for our foodie chickens—which have been multiplying for spring.

This gives the remaining plants some elbow room, which they quickly grow into. Two days after that first picking I took the photo above, and you can hardly tell we've already started eating the spring lettuce crop. A week later it was time to harvest again.


Great Greens in the Greenhouse, Including an Overwintered Swiss Chard Plant

The Winter Lettuce Mix, also from Pinetree Garden seeds, is to the right of the Tom Thumb in the photo above and is looking pretty good, too. I think we'll thin a little bit of it for tonight's dinner.

Are you enjoying spring salads yet? And have you ever grown Tom Thumb lettuce?

Related posts:
How To Easily Grow Your Own Gourmet Lettuce From Seed
Sublime Salads for Those Short on Time, Space, and Sunlight
On Loving Lettuce & Eating Salad for Breakfast
5/24/06: Mixed Baby Lettuce in the Garden & Eating Local
11/13/06: Petite Rouge Heirloom Lettuce in the Garden
5/8/07: Big Boston Lettuce in the Greenhouse

© Copyright 2009 FarmgirlFare.com, the going green foodie farm blog where we're looking forward to hopefully being able to enjoy freshly picked lettuce three times a day in the next month—because overindulging in spring is the only way to survive the hot summer and early fall without any!