Golden autumn farm- Bitter Gourd Melon 35 Seeds Temperature control, bitter gourd hi temperature, the more heat, not cold. Seed germination was suitable for 13 to 35, and the temperature was 30 to 20. At 25 degrees Celsius, about 15 days can be bred with 5 to 4 true leaves of the seedlings, such as the need for 20 to 30 days at 15. At 10 ~ 15, the plant growth was slow, and the growth was lower than 10, when the temperature was below 5, the plant was significantly affected.