The kudzu harvest time is December-February in winter.

Kudzu root stout vine, up to 8 meters long, all yellow hirsute, stem base woody, with thick tuberous roots. Leaves pinnately compound with 3 leaflets; stipules dorsifixed, ovate-oblong, linear; stipules linear-lanceolate, as long as or longer than the petiolules;

Leaflets trifoliolate, occasionally entire, terminal leaflet broadly ovate or obliquely ovate, 8-15(-19) centimeters long, 5-12(-18) centimeters wide, long acuminate at the apex, lateral leaflets obliquely ovate, slightly smaller, covered above by yellowish, appressed, veggie pilose.

Denser below; petiolules yellowish tomentose. Pods long ellipsoid, 5-9 cm long, 8-11 mm wide, flattened, brown hirsute. September-October, in grassy slopes or roadsides and shady places, or in forests in ravines at 1000-3200 m above sea level.

Expanded Information:

Kudzu is not strict on climate requirements, adaptability, but like warm, sunny climatic conditions, in Guangxi all over the climate conditions can grow normally.

The average annual temperature in the main production area is 21.1～21.5℃, the average temperature in January is 9～12.2℃, the extreme low temperature is -18～0℃, the average temperature in July is 28～33.3℃, the extreme high temperature is 39.5℃, and the annual rainfall is 1,600～1,710mm. The relative humidity of the air is 75% to 80%.

The soil requirements are more stringent, the plant in the soil layer is deep, loose and fertile, well-drained sandy loam in order to grow well. In the thin soil layer or too viscous, poorly drained soil growth is poor.