Tehama Lettuce is a spring crisp variety that is exceptionally heat-tolerant. This is an all-season variety in most climates and can be grown well into the warmer months in most states. It exhibits a vigorous growth pattern and is slow to bolt as temperatures warm from spring to summer. Tehama Lettuce produces large heads of dark green leaves that are crisp and slightly incised. It holds well in the field, allowing for a longer harvesting window. This is great for the home gardener because it can be harvested as you need it, not all at one time. For best results, densely plant transplants about 8-12″ apart. This will maximize growing space and also help to reduce weed pressure as the plant density will shade any new weed development.
Tehama Lettuce performs best when transplanted. Transplanting allows for more consistent plant spacing and prevents seedlings from competing with weeds in the early stages of the plant. We recommend starting transplants 3-4 weeks before the desired outdoor planting date. These seeds are pelleted for easy singulation when planting in seed trays. Tehama transplants grow great in our heavy-duty seed starting trays, where they develop a solid root ball with roots that are trained to grow downward. Lettuce transplants will need adequate fertilization once seedlings form the first set of true leaves. We recommend injecting 20-20-20 through the seedling watering system at least once a week to ensure plants are sufficiently fed. This can be done easily with our Brass Siphon Mixer and a five gallon bucket. Plants are ready to go in the ground when they can be easily pulled from the cells in the seed starting tray.
Tehama Lettuce Planting Information
Planting Method: transplant
When to Plant: early spring and fall
Planting Depth: 1/4″
Seed Spacing: 12″
Row Spacing: 18-24″
Days to Maturity: 50
Disease Resistance: Corky Root, Tip Burn
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