Broad beans, also called fava beans, are a cool-season crop that grow best in temperatures ranging from 60° to 65°F, but fava beans will grow in temperatures as low as 40°F and as warm as 75°F. Sow broad beans in spring as soon as the soil can be worked for harvest before the weather warms. Broad beans require 80 to 100 days to reach harvest. In mild-winter regions sow broad beans in early autumn for winter harvest.
Description. The broad bean is a bushy, hardy annual that can grow from 3 to 4½ feet tall. The broad bean has square stems with leaves divided into leaflets. Pods are 6 to 8 inches long and contain 4 to 6 flat, oval seeds that can be white, yellow, green, or pinkish-red. The broad bean has a white flowers that is splotched with brown. The broad bean is not a true bean is related to vetch, another legume.
Yield. Plant 4 to 8 broad beans per household member.
Site. Grow broad beans in full sun. Plant broad beans in loose, well-drained soil rich in organic matter. Add aged compost to planting beds before planting. Broad beans prefer a soil pH of 6.0 to 6.8.