Even after the weather gets too cold for lettuce, arugula and spinach are good choices to grow for salads.
Arugula OG is a productive organic variety. Mature plants form loose clusters of smooth, lobed leaves. It can be picked as baby leaves about three weeks after planting or left to grow for about 40 days. Although cool weather improves its flavor, it does need to be grown under row cover or in a high tunnel as winter approaches.
Spinach: Tyee is a slow bolting savoy type. Available in both organic and conventional seed, Tyee is ideal for overwintering