How to Propagate Winter Jasmine? A Detailed Guide to Common Propagation Methods

Propagation of Winter Jasmine by Cuttings

In early spring, cut vigorous one-year-old branches, or in July to August cut semi-lignified branches of the current year as cuttings, 8-10 cm long, remove the leaves on the lower 1/3, tie every 20 cuttings into a bundle, and soak them in a rooting stimulant solution. The rooting stimulant is generally indoleacetic acid, indolebutyric acid, naphthaleneacetic acid or rooting powder, first dissolved in alcohol (ethanol), then mixed with distilled water to the required concentration.

The concentration of the rooting stimulant solution is 0.01%-0.02%. Put the prepared solution in a container, then place the cuttings upright in the container so that the solution soaks about 2 cm of the base of the cuttings. After soaking for 24 hours, take them out and insert them into the prepared cutting bed and cutting soil. A shade frame needs to be built above the cutting bed, and an arched plastic tunnel 60-80 cm high should be set up to maintain the temperature and humidity of the cutting bed; the cutting bed temperature should be 20-25°C and the humidity around 80%. Rooting begins three months after cutting, and after five months the root system develops into seedlings. The bed can then be turned over and the seedlings lifted. Transplant the rooted seedlings into containers to grow strong plants for field planting.

[Propagation Methods]

Cuttings are mostly used. Select one-year-old branches, cut them into 15 cm lengths, and water the prepared seedling bed thoroughly; once the water has seeped in, the cuttings can be inserted. Dry insertion is also possible, that is, inserting the cuttings into the prepared seedling bed and then watering thoroughly. Cuttings can be taken from mid-October to mid-November or in spring. After rooting, divide and transplant; division or layering can also be used for propagation.

Cultivation and Shaping

Winter Jasmine forms flower buds on one-year-old branches and blooms in the following spring. Therefore, after the flowers fade each year, all flowering branches should be cut back short to encourage more side branches and increase the number of flowers, while strengthening fertilizer and water management.

Diseases and Pests:

Leaf spot disease and branch blight disease commonly occur among the diseases and pests, and can be sprayed with a 1500-fold dilution of 50% Tuzet wettable powder. The pests include aphids and bagworms, which can be killed by spraying with a 1000-fold dilution of 50% phoxim emulsifiable concentrate.

Cultivation of High-Stem Winter Jasmine

You can choose water wax (Ligustrum) seedlings with a diameter at breast height of more than 2 cm, and in early spring when they begin to sprout, perform side grafting at 1 m or at a selected height. Take 8-10 cm long branches of the current year's Winter Jasmine as scions and graft them. After grafting, bind tightly with plastic film, cover with a plastic bag, and after they survive and sprout branches, gradually tear the bag open for ventilation and hardening off the seedlings, and pinch off the tips to encourage side branches and develop a crown shape.

Suitable Growing Range

It is native to the subtropical regions of South China and Southwest China, and is extremely commonly cultivated in the south. It can grow in North China and Henan, and is cultivated and produced throughout Yanling County.

Landscape Uses

Winter Jasmine branches droop down, blooming before the leaves in early spring, with golden-yellow flowers and lush green foliage. In gardens it is suitable for placement by lakesides, streamsides, bridgeheads, wall corners, or on lawns, forest edges and slopes. It can also be planted around houses and is good for viewing flowers in early spring. The flowers, leaves and young branches can all be used as medicine.

[Origin and Distribution]

It is native to North China, mainly distributed in North China, Liaoning, Shaanxi, Shandong and other provinces. Winter Jasmine is relatively cold-tolerant, likes sunlight, and is drought-tolerant but not waterlogging-tolerant. Propagation is mainly by division, layering and cuttings. It is mostly used to arrange flower beds and adorn courtyards, and is an important early-spring flowering shrub.

It is often cultivated in various places for ornamental purposes; it is also distributed in the central and northern provinces of China.

The leaves are used as medicine to reduce swelling and detoxify, treating swelling, pain, malignant sores and bruises; the flowers can relieve fever and promote urination, treating fever, headache and painful hot urination. Both the leaves and roots contain syringin and winter jasmine glycoside. Propagated by cuttings or layering.

Through the detailed introduction in this article, we hope everyone can gain something from it! Everyone is welcome to continue following Duorou Huapu to learn more of the latest information about woody flowering plants!