Grand Rapids TBR Looseleaf Lettuce Seeds

$3.29

Out of stock

Description

Grand Rapids TBR Looseleaf lettuce seeds produce a large, upright rosette of thick, juicy, light-green, frilly leaves and a blanched centre. This tipburn resistant (TBR) variety has good flavour. The variety features very rapid growth in spring and fall, and grows better than any other variety under cool, damp, low-light conditions. Try Grand Rapids TBR in cold frames or beneath a cloche greenhouse for salad production all winter. In the spring and summer, sow short rows often so the crop can be harvested over a long period, and so that you are not overwhelmed by a garden full of mature lettuce all at once.

Matures in 65 days. (Open-pollinated seeds)

1g- approximately 900 seeds

Difficulty
Easy

Season & Zone
Season: Cool season
Exposure: Full sun to partial shade
Zone: 4-12

Timing
Lettuce grows best in cool weather in the spring and fall. Sow in April every 2-3 weeks for a continual harvest. Using a cloche, cold frame, or greenhouse over mid-late August plantings can extend the harvest period right into winter. Optimal soil temperature for germination: 10-22°C (50-72°F). Seeds should sprout in 7-15 days, depending on conditions. Seeds don’t sprout easily when the soil temperature is over 22°C (72°F) in summer. Get around this by sprouting them indoors in a cool area, or pre-sprout by sprinkling seeds on a damp paper towel and placing it in a plastic bag in the fridge for a few days. In hot weather lettuce goes to seed rapidly, so have new plantings ready to go.

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