Details will depend on the local purchase price.

After long cowpea is sown, it takes about 60 days (spring sowing) or 40 days (summer sowing) to start harvesting the tender pods. After flowering, it takes about 7 to 12 days for the pods to be fully grown and the tissue is tender. Seeds should be harvested promptly when they are just exposed and tender. High yield.

Cowpeas have more than two pairs of flower buds per inflorescence and usually only produce one pair of pods. If there is sufficient fertilizer and water, timely harvesting and no damage to other flower buds on the inflorescence, some of the inflorescences can bloom more and produce pods, which can increase the pod setting rate and increase yield. Pick once every 4 to 5 days in the early stage of picking, and every 10 days during the fruiting period. Harvest once every 1 to 2 days, and the harvest period is about 30 to 40 days.

The yield per mu of dwarf varieties is 600-800kg, and that of creeping varieties is 1250-1500kg.