Black beans in June-July every year, but in the greenhouse planted in the black beans, in all seasons of the year, from sowing to ripening needs 120-180 days, its common varieties of ubiquitous green beans and ubiquitous yellow beans, and their time to market there is not a great deal of difference.

Black beans are planted in April-May, about 4-5 months of planting can be harvested, in July around a large number of market, the price per kilogram ranging from 6-12 yuan.

Black beans origin and listing season

Black beans are widely planted in China, the more common places of origin are Heilongjiang, Jilin, Liaoning, Jiangsu, Shanxi and other provinces, of which the eastern provinces are the most popular.

1, Hebei black beans: Hebei produces Hebei black beans 1, here the black bean yield, good quality, is a summer sowing varieties, the plant's growth cycle in about 107 days.

2, Jilin black beans: Jilin produces green nuts black beans, fruit ripening time in December to March, it's black skin, green, rounded grains, known as the "black pearl".

Black beans are ripe for consumption

Black beans are best consumed in June-July, not ripe black beans can not be eaten, otherwise it will easily cause indigestion, diarrhea and other symptoms.

Black beans are best eaten when it is naturally ripe, do not hit the ripening agent to ripen, because the ripening agent and pesticide residues are not conducive to human health.