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by Tamara Galbraith
With spring just around the corner, but temperatures still in the cool range, it’s a great time to sow some lettuce seeds in your garden. Lettuce is easy to start, matures quickly, and offers a “cut-and-come-again” growth habit that can give you several salads from the same plant.
Loose leaf, butterheads, romaine’s, red oakleaf and the mixes are the easiest and most nutritious lettuces to grow.
Germination of lettuce seed requires full sun to part shade to perform well. Do not bury lettuce seeds, but rather scatter them over fertile, fluffy, moist soil (you may want to amend with Paydirt before planting), then sift some Paydirt lightly on top of the seed, just enough to cover the seed and press down gently. You will probably see germination in about a week if soil temperatures remain around 50 degrees. Alternately, you can buy already-started plants.
Lettuce can and should be grown outdoors in a sunny location as long as temperatures stay above freezing at night – if unexpected freeze comes, simply toss a few layers of frost cloth on top of the plants and they should be fine.
Make sure the soil stays evenly moist as the plants develop. Thin seedlings to allow about 6” between (or plant 6” apart if you aren’t starting from seed), but don’t worry too much about overcrowding. Leaf lettuces are particularly fast growing; they reach maturity in 45-60 days, while romaine and butterhead / bibb types can take up to 70 days. You can harvest individual leaves to eat, or give each plant a crewcut about 2” above the soil line and let it re-grow.
There are many beautiful, tasty types of lettuce in all sorts of shapes and colors. Check with us to see what varieties are best for our area, as some are more heat-resistant. The biggest enemy of lettuce is heat, which is why late winter or spring is the perfect time to start lettuce. Once regular warmth comes along- say 80 degrees or more – lettuce will quickly “bolt” meaning the plant suddenly puts on a growth spurt, then sends up flowers and goes to seed. It tastes so bitter and chewy at that point, even the bunnies won’t touch it.
Note for those with limited space: lettuce may be grown in containers (medium size). This also has the advantage that you can move the containers to a cooler spot when the weather gets warm, thus keeping them from bolting for a little bit longer.
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