Keep freshly harvested lettuce crisp for up to two weeks: dry thoroughly, store with a paper towel at 40°F, and revive wilted leaves in cold water.
Harvest lettuce the right way — pick outer leaves, protect the growing center, and keep romaine and loose-leaf types producing fresh greens for weeks.
Grow crisp romaine lettuce indoors with exact temperature, light and pH targets, a seed-to-harvest timeline, and fixes for bitterness and bolting.
Know exactly when to harvest romaine lettuce — 30-60 days, 6-8 inch heads, firm overlapping leaves — plus how to cut it and keep indoor heads coming.