It is native to the Eastern Mediterranean area. Lettuce grows best as a cool-season crop but some varieties may be grown all year around in the San Francisco Bay Area.
Leaves are soft, smooth, and delicate.
LEAF - has a loose rosette of leaves. This type stands heat better than the other and is a summer mainstay in hot weather areas. This type withstands heat moderately well. Generally they form a softer, looser head with some characteristics of a butterhead, still having a crunchy, juicy texture. Antina Tinge is red color on the leaf margins such as with prize head or Antina.