How to Propagate Hydrangeas? A Detailed Guide to the Latest Propagation Methods

The hydrangea is a shrub plant of the Saxifragaceae family, and it was cultivated in China quite early. Today, most parks in China cannot do without the embellishment of hydrangeas, which also form a beautiful scenic line. Its ornamental value is very high, and it now has a very large cultivation area in China. However, when cultivating hydrangeas, we need to do a good job of propagation, so today I have brought you the propagation methods for hydrangeas. Let's take a look below!

1. Division Propagation

The most commonly used propagation method for hydrangeas is division propagation. Division propagation is relatively simple to carry out, and the rooting and survival rate is also relatively high. The division time for hydrangeas should be chosen when they sprout in early spring. First, choose a robust mother plant free of pests and diseases, and then select branches that have already rooted. Separate them from the mother plant, and you can directly plant them into a pot, then water appropriately and provide good shade. However, watering should not be excessive, to avoid the branches rotting. Once the branches sprout new buds, normal care can be carried out.

2. Layering Propagation

Layering propagation is also a commonly used propagation method in hydrangea cultivation. Compared with division, layering is slightly more difficult to carry out, but its survival rate is also relatively high. Layering propagation can generally be carried out throughout the year, but it mainly depends on the sprouting of new buds on the branches. Layering should be carried out when the new buds sprout. Choose a robust branch, then girdle it down to the xylem, wrap moist sand around the girdled area, and tie it tightly. After about one month it can grow, and in the spring of the following year it can be separated and transplanted with soil. With careful management and care, it can bloom that same year.

3. Cutting Propagation

Besides division and layering, hydrangeas can also be propagated by cuttings. The success rate of cutting propagation is actually relatively high, but it is not suitable for large-scale planting. Cutting propagation is generally carried out during the plum rain season each year. First, select high-quality branches. Cut off the tender shoots at the top, keeping the length at about 20 cm. Then cut off the leaves on the lower part of the cutting, and a rooting agent can be applied appropriately. Then insert the cutting directly into a sand bed, with the temperature controlled at about 15°C, and it can take root in about half a month.

4. Tissue Culture Propagation

Tissue culture propagation is relatively troublesome to carry out, but it is also a high-quality propagation method. First, we need to select dormant buds from the plant as explants. Then carry out routine disinfection and inoculation, then add an appropriate amount of benzylaminopurine and indoleacetic acid, and place them on the culture medium to promote the formation of adventitious buds. When the seedlings grow to about 3 cm tall, they can then be transferred to a culture medium with indoleacetic acid to promote growth into complete small plantlets.

The above is a brief introduction to hydrangea propagation methods. There are many propagation methods for hydrangeas, and we should choose the appropriate propagation method according to the actual situation. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!