Tender. Plant between average date of last spring frost (about when the first apples bloom) and July 15.
Acidity (pH) Tolerance
6.0 - 7.5 pH
Salinity (Ec) Tolerance
Band 1.5 pounds of balanced all-purpose fertilizer (20-20-20) for every 100 feet of row when planting. Place two inches to the side and two inches below the seed so that it does not damage the seed.
Avoid adding further nitrogen because beans and other legumes have nitrogen fixing nodules on their roots and fix their own nitrogen once established. Excess nitrogen delays flowering and encourages excess vine growth.
Beans require an average amount of water, and do best in a well-drained soil. Avoid water deficiency during bloom/fruiting period, as root systems are shallow and plants wilt easily during hot summer weather.
Plant Development and Care
Beans have four stages of development: germination and establishment, rapid vegetative growth, flowering and pod development, and pod fill and maturation. During germination and establishment phase, the seedling emerges and three nodes are visible on the main stem. During rapid vegetative growth, branches develop in leaf axis at each node and a new node develops every three days. During flowering, the blossoms appear at the nodes and pods grow 5 to 6 inches long.
Germination Time (Days)
16 days at 59° F 11 days at 68° F 8 days at 77° F 6 days at 86° F or higher
Seed Germination and Temperature Range
50 to 75°F. Soil temperatures should be approximately 65° F.
Common Fertilizer Deficiencies
Beans are sensitive to zinc deficiencies. They generally occur in soils where the topsoil has been removed, soils low in organic matter, or soils with a pH greater than 7.0.