Forsythia suspensa has strong adaptability to soil and can survive in most of the soil, so it is suitable to be cultivated in deep, fertile and loose slightly acid or alkaline loam.
Forsythia suspensa (Thunb.) Vahl was photophilous and needed sufficient light to promote the growth of plants.If too little light is received, it will lead to slow growth and difficult survival of plants.
Northeast Forsythia demand for water is not too strong, to keep the soil moist.Increase the frequency of watering in high temperature and drought period, and pay attention to drainage in rainy season to avoid root rot.
Forsythia suspensa is cold-resistant and drought-tolerant, the lowest temperature is -14.5 , the highest temperature is 39.4 , and the most suitable cultivation temperature is 12.1-17.3 .
The main disease of Forsythia suspensa is leaf spot.They can damage the leaves of Forsythia suspensa and cause serious plant death.If the disease is found, it can be sprayed with 800 times of 50% carbendazim wettable granules to control it.
In Forsythia suspensa Vahl., the main insect species are Cryptosporidium rubrum and Ichthyophthirius fasciatus.If you encounter pests, you can use imidacloprid wettable granular solution to spray control.If the plant is seriously damaged, it should be destroyed in time.