What are the cultivation methods and precautions of hydrangea

Hydrangea cultivation method

Hydrangea is a plant of the Saxifragaceae family and the Hydrangea genus. The main methods of reproduction include division, layering, cutting, tissue culture, etc.

Hydrangea prefers a warm and humid semi-shady environment. It is not cold-resistant and cannot tolerate direct sunlight. Its leaves easily turn burnt and yellow under strong light. It is suitable for planting in light loam that is rich in humus, moist and well-drained. The suitable growth temperature is 18-28 degrees, and the winter temperature is not lower than 5 degrees. The pH value of the soil affects the flower color. When the soil is acidic, it is blue, and when the soil is alkaline, it is red.

Watering method

When you just bring hydrangea home, you don't need to water it immediately. If the soil is very dry, you can water it slightly. Generally, water it every two days in spring and autumn, every day in summer, and once a month in winter. In addition, water the roots, and don't drip on the leaves and flowers.

Fertilization method

Hydrangea has a large demand for fertilizer. During the growth period, you can apply thin cake fertilizer water once every half a month. In order to provide an acidic environment, diluted ferrous sulfate can be added to the fertilizer solution. Frequent watering with alum fertilizer water can make the branches and leaves lush. Applying potassium dihydrogen phosphate 1-2 times before flowering can make the flower color more colorful.

Pruning methods

When the hydrangea is about 10 cm tall, you can pinch the top to allow the lower axillary buds to germinate. You can pinch it again when it grows taller. After flowering, trim the withered flowers in time and shorten the old branches, leaving 2-3 buds to allow it to sprout new shoots. In autumn, you can trim the top of the new shoot to allow it to overwinter better.

Hydrangea cultivation precautions

Hydrangeas are suitable for planting in loose, fertile, well-drained, humus-rich acidic soil. They need to be moved indoors for maintenance in early and mid-October, keeping the room temperature at around 5°C. From December, move them to a sunny place, provide a temperature of 15 to 20°C, and move them out of the house in late April of the following year.