How to care for Banksia rose in winter so it survives the cold safely

Banksia rose is distributed in Sichuan and Yunnan in China, growing beside streams, along roadsides or in hillside thickets, and is cultivated throughout the country. If you grow it at home, how does Banksia rose overwinter?

1. How does Banksia rose overwinter?

Banksia rose is relatively cold-hardy and can survive low temperatures of minus ten-odd degrees Celsius. But to help it get through winter more safely, it is best to keep it indoors at above 5°C, or wrap some straw around it. This can prevent it from freezing.

2. Propagation methods for Banksia rose

1. Sowing

Seeds can be used for raising seedlings, but because seedling cultivation from seed is relatively difficult to keep alive, it is generally not recommended to use seeds for propagation. In production, softwood cuttings from the current year's shoots are mostly used for raising seedlings, as they root easily. Rare and valuable varieties are harder to root from cuttings.

2. Division

This is a propagation method in which the small shoots growing from the roots and stem base of the plant are cut away from where they connect to the mother plant, then planted separately so they grow into independent new plants. This method is simple and easy to carry out, and they establish quickly. It is widely used in horticulture. [3]

3. Cuttings

Choose healthy, vigorous branches free of pests and diseases as cuttings. After collecting the cuttings, they should be inserted immediately to prevent wilting from affecting survival. Generally, dipping the lower cut end of a plant cutting in some freshly burned plant ash helps prevent rot. For most plants, cuttings root fastest when kept at 20-25°C.

4. Layering

Layering is a method in which the branches and vines of a plant are pressed and buried in a moist medium, and after they root they are cut away from the mother plant to form new plants. The survival rate of the resulting plants is high, but the propagation rate is low. Unlike grafting, the branch remains as it is, that is, it is not separated from the mother plant; part of it is buried in soil, and after it roots it is then severed from the mother plant.

5. Grafting

With grafting propagation, asexually propagated seedlings can bloom in the same year. For seedlings used as potted flowers, older branches from superior varieties should be selected.

The root of Banksia rose can be used as traditional Chinese medicine. It tastes bitter and can be combined with bitter orange, Sichuan chinaberry, corydalis tuber and others to regulate qi and soothe the liver, and to strengthen the spleen and relieve stagnation. This flower is cultivated and has relatively high horticultural value.