How to manage Forsythia to grow better

When the forsythia seedlings are 5-7 cm high, start to interplant and replenish the seedlings, and keep the plant spacing at 5-6 cm. Due to the slow growth in the seedling stage, attention should be paid to ploughing and weeding at least once a month after emergence. After the first combination of inter-seedling, topdressing should be carried out in time after intermediate ploughing and weeding in June, August and October. After transplanting into the field, spraying the new high-fat film in time can effectively prevent the aboveground water from evaporation and seedling water transpiration, isolate the diseases and insect pests, shorten the slow seedling period, quickly adapt to the new environment and grow healthily. Weeding can be done 4 times a year, usually in March, May, July and October, and topdressing 3 times after weeding in March, May and October. Fertilizer is mainly human and animal manure water, and nitrogen fertilizer can also be applied. Hypericum perforatum has fewer diseases and insect pests, so it only needs to be sprayed with new high-fat membrane to protect it.