The suitable planting period of Amorphophallus konjac is April, and it can also be sown in autumn, but the plants planted in autumn will not germinate and grow until the next year. Determine the suitable sowing date according to the climatic conditions in various places. The lowest temperature of konjac germination is above 65438 05℃. Sowing too early, the soil temperature rises slowly in early spring, and the growth rate of cone buds is slow, which takes a long time. Sowing too late, short growth period and low yield. Generally speaking, the most suitable sowing date in rural Guizhou is the week after Tomb-Sweeping Day. After sowing, seedlings began to emerge from late April to early May, and seedlings emerged early in years when the temperature rose rapidly.

Amorphophallus konjac belongs to semi-humid plants, which germinate in spring and shed leaves in autumn. The annual growth period is 200-240 days, and the shortest is only 150- 170 days. Konjac needs a warm, humid and cool ecological environment.

Amorphophallus konjac is mainly distributed in tropical, subtropical and some temperate regions of the old hemisphere, and the suitable temperature for its growth and development period is 15-25℃. The annual average temperature is 14- 16℃. When the temperature rises to 12℃, it begins to take root and sprout at 15℃. In the tuber expansion period, the suitable temperature for konjac growth is 20-25℃. Is it inhibited if it exceeds 35℃? If it is below 12℃, it will grow on the ground. 15-20℃ takes 25-30 days to germinate, and the seedlings grow healthily. At 20-25℃, the germination time is 12- 15 days, and the seedlings grow healthily. When the temperature exceeds 30℃, the germination time is only 6-7 days, but the seedling growth is relatively thin.