THERE has recently come to hand a report 1 on the vernalization of two varieties of lettuce. The plants obtained ... all produced flowering stalks 14–20 days earlier than the control.

Harvesting lettuce is simple—though you'll want to do it before the plant begins to flower for the best flavor. Fresh, crisp, cool lettuce is the perfect addition to many summer salads and ...

There are seven main types of lettuce, including cos or romaine, butterhead, leaf, stalk, crisphead, latin, and oilseed.