Breeding sweet pea should use fertile, good drainage soil, can be saprophytic soil, garden soil and cake fertilizer for the preparation and use.
In its growth stage, it needs to supplement water in time. It can be watered once every 2-3 days and ventilated properly. It doesn't like too humid growing environment, so it should be watered less at ordinary times. If there is water accumulation due to excessive watering, the root of the plant will rot.
Sufficient light should be given to the sweet pea in the period of vigorous growth. In summer, the temperature is high and the light is strong, so shade measures should be taken in time. Do not let it be direct sunlight, can spray water to the breeding environment properly, can reduce the temperature, can also enhance the air humidity.
Before it blooms, it should be given a growth environment of 9-13 ℃, and the temperature at night should be controlled at about 5-8 ℃. If the temperature is too high, it will affect its growth. The best temperature control is 15 - 20 ℃.