In general, it's intolerant of hot weather and bolts in the summer. Bolting is when the plant sends up a flower stalk to reproduce. Early bolting and a long growing period makes it hardest of the lettuces to grow at home. The crispheads do not grow well in Georgia. Butterhead types have smaller, softer heads of loosely folded leaves.
Several cultivars grow well in Georgia gardens.
Leaf lettuce doesn't form a head. The leaf form and color varies widely. Some cultivars are frilled and crinkled and others deeply lobed. Color ranges from light green to red and bronze. Leaf lettuce matures quickly and is the easiest to grow.