(Lactuca sativa) An Old World crop, appreciated since ancient times, that requires cooler temperatures to grow really well. Sow in place in the garden as early in spring as soil may be worked— seeds sprout and grow whenever mild weather predominates. Or start indoors and set out acclimated seedlings 2-4 weeks before last frost date. Succession plant lettuce for a continual crop, but avoid long days and heat of early-mid summer. May be grown right through the winter where the weather is mild, or under row cover, cold frames, etc. Lettuce is healthy and rich in Vitamins A & C.