Dutch beans are ripe in spring and fall;

Dutch beans are green throughout, smooth and glabrous, and dusted with pink frost. The pods are long ellipsoid, 5-10cm long, with a firm papery lining the ovary is glabrous, the style is flat and bearded on the inner surface. Pods swollen, long ellipsoid, apically obliquely acute, dorsally nearly straight, with a firm papery lining skin on the inner side;

2-10 seeds, orbicular, greenish-green, wrinkled or absent, turning yellow when dry. Apical tendrils are leaf tendrils and stipules are ovate. Flowers white or purplish red, solitary or 1-3 arranged in racemose axils, with whiskers on the inside of the style and butterfly-shaped petals.

The pods are long ellipsoid or flattened, and are classified as soft or hard according to the presence or absence of an inner leathery membrane and its thickness. Seeds can be round cylindrical, oval, oblate, concave round, 2 to 10 per pod, mostly lime green, but also yellow and white, red, rose, brown, black and other color varieties.

Extended Information:

Dutch beans require more water throughout the growing period. During seed germination, if there is insufficient soil moisture for the seeds to absorb water and expand, seedling emergence will be greatly delayed. The seedling stage can tolerate some dry climate.

Flowers and pods will fall if the air humidity is too low during the flowering period. In the pod growth period if the high temperature and drought, will make the pod fiber early hardening, premature maturity and reduce quality and yield.

So, in the Dutch beans throughout the growing period, there must be an adequate supply of water in order to grow vigorously, pods large grain full, quality and quantity. However, it is not tolerant of flooding, if the water is too large, it is easy to rot the seeds after sowing, easy to rot the roots during the seedling period, and easy to develop diseases during the growing period.