Needs warm day and cool night temperatures for good results. Direct sow when soil temp reach 65-70˚F, in Iowa they plant about a month after corn in early June. Shallow rooted and can require up to 1/4” of water a day during the hot season, mulch roots to conserve moisture. Excess nitrogen results in excess foliage, poor pod set and delayed maturity. Edamame harvest season is short, harvest when pods are plump and the beans are almost touching each other in the pod, end of August to early September. Once the pods turn yellow, beans become starchy and loose their sweet nutty flavor. Dry beans on the plant to save seed. Beans are susceptible to numerous diseases, avoid wetting foliage. Soil pH 5.5-6.6. Hardiness zones 5. Annual.
Days from maturity calculated from the date of seeding. Average 110 seeds per ounce. Federal germination standard: 75%. Usual seed life: 3 years. Isolation distance for seed saving: 150 feet.
Planting Depth
1/2-1”Soil Temp. Germ.
70-85˚FDays to Germ.
7-10Plant Spacing
4”Row Spacing
36-48”Days To Maturity
70-80Part Shade,
Moist Well Drained