This article introduces how to propagate hydrangeas and related topics such as cutting methods and timing for growing flowers. Next, our site editor will introduce to you.
Hydrangeas are shrubs belonging to the Hydrangeaceae family. They are named for their flower balls that form when blooming. The plant can grow 1-4 meters tall, with papery or nearly leathery leaves in an obovate shape, and coarse teeth on the edges. The flowers bloom from June to August, and their colors can vary depending on the growing environment, which can be adjusted to make them more colorful.
Hydrangeas are not cold-tolerant and cannot survive the winter in many places, so new ones have to be bought the following year. However, by mastering cutting techniques, several pots of flowers can be grown, eliminating the need to purchase new ones.
I. Cutting Time
The survival rate of hydrangea cuttings is related to temperature. In warmer climates, cuttings root and sprout easily. Generally, spring and autumn are chosen for cutting, with spring from April to July and autumn in September-October. This time is just after the blooming period and before the temperature drops, making it suitable for cutting. Post-blooming cutting also has the benefit of reducing nutrient consumption of the original plant, and pruning helps conserve nutrients, aiding in winter survival.
II. Cutting Treatment
First, find a strong and healthy plant without pests or diseases. Cut a sturdy semi-woody branch with 2-3 buds. Remove all the lower leaves, leaving only the top two to reduce water loss and increase the chance of cutting survival. After cutting, do not plant immediately; instead, place in a shaded, well-ventilated area to let the wound dry. You can apply carbendazim to prevent infection and rot.
III. Potting Soil Preparation
Before planting, prepare the potting soil. Hydrangeas thrive in loose, fertile soil with good drainage and aeration. Sandy soil is often chosen, and a mixture of peat soil and perlite can be used, or sand can be added. Thoroughly mix and spread it in a sunny place to kill bacteria and fungi. Then, prepare an 8-12 cm pot and fill it with the soil.
How to propagate hydrangeas
IV. Planting Cuttings
After the cutting's wound is dry, it can be planted. First, make a hole in the soil surface with a chopstick at an angle, then insert the cutting and press the soil to ensure it does not fall over. Then, spray a little water to keep the soil moist but not too wet, and place it in a shaded, well-ventilated area to wait for the cutting to root.
V. Subsequent Maintenance
Hydrangea cuttings take about 20 days to root. During this period, keep the soil moist and expose to some scattered light. Once roots appear, the cuttings can be exposed to sunlight in the morning and evening but should not be in direct sunlight for extended periods to prevent rapid water loss. Also, regularly check the soil's moisture level and water immediately when the surface is dry to speed up seedling growth.
The comprehensive method for propagating hydrangeas and cutting techniques and timing introduced by the Green Enthusiast Network is hoped to be a starting point to solve your green plant problems.