It is necessary to use loose sandy loam with good air permeability, smooth water permeability and more organic matter, and add a small amount of bone meal as base fertilizer, and the soil should be disinfected at high temperature before use.
The optimum temperature for the growth of P. purpurea was about 15 , and the temperature higher than 20 affected the growth, budding and flowering of P. purpurea.If the temperature can be reduced to about 10 during flowering, the flowering period can be prolonged, but the night and overwintering temperature during the growth period can not be lower than 10 .
It likes to be exposed to sunlight, but avoids direct exposure to the scorching sun.When the light is too strong at noon, it should be properly shaded and well ventilated, otherwise it is easy to cause damping-off.Increase the light time can advance flowering, such as in November began to increase 3 hours a day light, flowering at the end of January next year, greenhouse cultivation should pay attention to 30% shade before October, October to March next year is not shaded, after March, flowering to about 50% shade.
Drought will make the plant grow poorly, we must pay attention to drainage, too wet and easy to cause root rot.When watering, it is not suitable to stain the leaves, because the leaves are hairy and easy to rot.Watering requirements see dry see wet, can often spray to the pot, so that the air humidity remains above 80%, but pay attention to the flowering period can not spray water to the flowers, so as not to affect the fruit.
