How to grow hydrangea

1. Breeding environment

1. Soil: Hydrangea prefers soil rich in humus, and it is best to choose slightly acidic soil with good drainage.

2. Temperature: The temperature suitable for hydrangea growth is 18-28℃, 20℃ is conducive to flowering and growth, and the minimum temperature should not be lower than 5℃.

3. Water: Sufficient water can make hydrangea grow faster, but there should be no water accumulation. When the temperature is high and the weather is hot, spray some water on the ground or around to increase the humidity of the air.

4. Fertilization: During its vigorous growth period, hydrangea should be given sufficient nutrients. Apply decomposed thin cake fertilizer water once every 15 days. This can make its flowers bigger and promote its better growth.

2. Breeding Methods

1. Propagation by cuttings: The length of the cuttings should be about 10 cm and have 2-3 nodes. After cuttings in early spring, shade and warmth should be provided. After cuttings in May-August, they should be placed in a shaded place and sprayed with water frequently to keep them basically moist. They will take root in about a month.

2. Layering propagation: When layering, make a cut on the part buried in the soil, bury it with about 2-3 cm, cover it with a layer of soil, compact it, water it and cover it with a film. It will take root in a month. When the exposed part of the layering sprouts 3-4 new branches, you can fertilize it appropriately for better growth.

3. Common pests and diseases

1. Common diseases: powdery mildew and leaf spot. Pay attention to ventilation. The potting soil should not be too wet. Remove the diseased leaves in time to reduce the chance of infecting healthy leaves. You can use 65% Zineb wettable powder 600 times diluted for spraying for prevention and control.

2. Common pests: aphids and blind bugs can be killed by spraying 1500 times diluted 40% oxydemeton-methyl emulsifiable concentrate.