How to propagate hydrangeas, a tutorial on the cultivation methods of hydrangeas.

How to propagate hydrangeaHydrangea propagation and cultivation method introduction of green plant flower planting content, the following editor will introduce to you.Hydrangea is a deciduous shrub plant, and the flowering period is from May to September every year. The flower clusters of hydrangea are colorful, planted in courtyards, corners, and windowsills, creating a festive atmosphere. The bright colors include blue, pink, red, and more, like a sea of blooming flowers that bloom before people's eyes. Potted plants placed in spacious indoor spaces such as living rooms and balconies look even more cheerful, making them the ideal flowers to decorate window sills, balconies, and living rooms. In recent years, it has become increasingly popular among flower enthusiasts. So, how to plant and take care of hydrangea? Today, I will share five cultivation methods of hydrangea with you.1. Selection of planting soil. Hydrangea prefers loose, fertile, and well-drained sandy loam. For potted hydrangea at home, a mixture of fertile garden soil, peat soil, and sand is recommended. It should be noted that the color of hydrangea flowers will vary slightly depending on the soil used. Flowers grown in acidic soil will show blue hues, while those grown in alkaline soil can display pink hues. You can also use ferrous sulfate to adjust the blue color by mixing water with ferrous sulfate according to the instructions when watering, which can change the soil pH. Using aluminum sulfate to adjust the pink color means adding aluminum sulfate to the water when watering, which changes the soil pH to slightly alkaline, allowing the hydrangea to bloom pink flowers. When growing hydrangea, a pot with a diameter of 15-20 centimeters is suitable. A pot that is too large may cause waterlogging and root rot, while a pot that is too small may affect the plant's nutrient intake and growth.2. Temperature and lighting requirements. Hydrangea prefers warmth, with an optimal growth temperature of 18-28 degrees Celsius. In winter, it should be kept indoors, as temperatures below 5 degrees Celsius can cause frost damage. Hydrangea enjoys semi-shaded lighting and grows best in bright, diffused light. It can be placed in a spot with diffused light on the balcony or about 2 feet away from a windowsill. The plant will thrive. Especially in summer, it should not be exposed to direct sunlight, as this can cause sunburn on the leaves and fade the flowers, greatly affecting their ornamental value.3. How to water and fertilize. Hydrangea prefers moisture and is highly susceptible to drought. It requires ample water supply during the growing season, especially in summer, when it should be watered once in the morning and evening. Otherwise, the leaves will wilt. In winter, it is better to keep the potted hydrangea slightly dry, as excessive moisture can cause root rot. Hydrangea enjoys fertilizer and should be fertilized every half month during the growing season. Blue hydrangea can be fertilized with more potassium, while pink hydrangea can be fertilized with more calcium-containing fertilizers.4. How to prune flower branches. After the hydrangea flowers fade, remove the spent flowers and leaves to encourage new branches. During the vigorous growth period, prune dense branches, weak leaves, and weak branches to increase ventilation, light penetration, and make the plant more rounded and beautiful.5. Disease and pest control. The main diseases of hydrangea are leaf blight and black spot, which can be controlled by spraying 70% mancozeb powder diluted to 800 times. The main pests are aphids and thrips, which can be controlled by spraying 1000 times liquid of dimethoate. If one spraying is not enough, repeat after 10 days until completely eliminated. Regular maintenance should focus on good ventilation, pruning spent flowers and leaves, and controlling pests.How to propagate hydrangeaPropagation methods: The propagation of hydrangea is suitable in spring and autumn, with the best time being from April to June in late spring and early summer, and from September to October in autumn. The main methods are cutting propagation and division propagation. a) Cutting propagation. After the hydrangea flowers fade, select healthy young branches 10-15 centimeters long as cuttings, remove the lower leaves, leaving 2-3 leaves at the top, and insert them into moist sandy soil, keeping them in a shaded place with slightly moist soil. They usually root and sprout within 20-30 days. They can be transplanted into your preferred pot the following year and will bloom the same year. b) Division. It is more suitable to do this in early spring before sprouting. In spring, when repotting, separate the rooted branches from the mother plant and directly plant them with soil in a small pot. Avoid overwatering, as slightly moist soil is easier to survive. Keep it in a semi-shaded place and transfer to normal cultivation after new leaves sprout.The above is the specific content about how to propagate hydrangea and the cultivation method of hydrangea from [Green Plant Enthusiast Network] for your reference.