What is the best sowing date of bitter gourd?

Bitter gourd is best sown in March-May every year.

Bitter gourd in northern China is usually planted in greenhouse or greenhouse from late March to early April, and then planted from late April to early May. Generally, the Yangtze River basin is sown in mid-March and in mid-April. In southern China, sowing is usually carried out in June to March in spring, April to May in summer and July to August in autumn. If protective facilities are used, they can also be cultivated in winter.

Planting bitter gourd generally requires sowing and seedling raising in advance, which can be raised in electric hotbed or soil hotbed; Because the seed coat of bitter gourd seeds is thick, it is suggested to soak seeds before sowing, which can promote the early germination of seeds and improve the germination rate of seeds. You can also break the seed shell of bitter gourd in advance, and the soaking time of broken seeds should be short, generally about 2 hours, and it usually takes about 10 hour for those that cannot be broken. Then dry and sow. Be careful not to pinch the kernel when pinching the seeds.

Growth habit of bitter gourd

Bitter gourd likes temperature, heat-resistant but not cold-resistant. The optimum temperature for seed germination is 30-35℃, and it is slower when the temperature is below 20℃, and it is difficult to germinate when the temperature is below 13℃. At about 25 degrees, 15 days can produce 4-5 seedlings with true leaves, and at about 15 degrees, it takes 20-30 days. Bitter gourd plants grow slowly at 10- 15 degrees, and grow poorly below 10 degrees. When the temperature is below 5 degrees, plants will be damaged by low temperature.