Introduction to the propagation methods of witch hazel

Witch hazel is mostly born in hillsides, valleys and other places, it is an alpine tree species and a warm tree species, but witch hazel has strong cold tolerance and can grow in the open field at a temperature of minus 15 ℃. Witch hazel is mainly sown and propagated, and it can also be reproduced by striping and grafting.

Witch hazel

The period of sowing and breeding Hamamelis (details) is from December to March of the following year. The ripening period is October. The capsule is yellowish brown when mature and has the habit of dehiscing the seedling seeds. Therefore, the harvested fruit should be covered and dried to avoid the loss of seedling seeds. A thousand seeds of seedlings weigh 65 grams.

Seedling seeds have a long dormant period, so they do not germinate in the same year after sowing, but will germinate in the spring of the following year. Therefore, most of the seedling seeds use wet sand stratification for one year, and then sow in autumn or spring. Strip sowing is used with row spacing of 20-25 cm and sowing depth of 2 cm. Cover the soil after sowing, shade the sun after emergence, keep the soil moist, pay attention to waterlogging in the rainy season, and stop shading in mid-late September. The seedlings will continue to be cultivated in place for a year. After the end of the second year, they were retransplanted to cultivate big seedlings.

Striping reproduction can be carried out in both spring and autumn. Cut the branches under the node and bury them in the trenches that have been dug, with a depth of 6-8 cm. The top is facing up, the branches are fixed with bamboo sticks, and then covered with soil, the soil is often kept moist. It can be cut and planted with the mother plant in the next spring.

Transplantation of witch hazel is more resistant to transplantation. It usually takes place from October to November. Too late transplantation will affect flowering in early spring. Small seedlings should be transplanted with soil, while large seedlings should be transplanted with soil balls.

Propagation methods of witch hazel

Propagation methods of witch hazel

The propagation method of witch hazel is mainly sowing. In order to increase the diversity of varieties, cutting and grafting are used occasionally.

Sowing and raising seedlings

After the fruit is ripe in autumn, the fruit branches are collected and placed in the sun for 3 days, and the fruit will automatically crack, take out the seeds and sow. Sowing about half a month to 20 days or so, the seeds basically germinated, choose the time when the light is not very strong, the cover grass will be opened. In addition, the work of loosening soil, weeding, topdressing and so on should be carried out in time, and attention should be paid to the management of water and fertilizer in order to cultivate healthy saplings. During the period from the defoliation of the seedlings to the sprouting in the following spring, the seedlings were transported, the bare roots were planted or transplanted, and the final planting was completed.

Other reproduction

Witch hazel propagation, multi-use seed sowing and seedling. Grafting, cutting and other methods can also be used, but its reproduction survival rate is not as good as sowing, rarely used.

Culture methods and matters needing attention of witch hazel

Soil selection of culture method of witch hazel

Witch hazel is not strict with the soil and can grow in acidic and neutral soil. The best choice is the sandy soil which is rich, loose and well drained.

Light and temperature

Witch hazel likes light, but it can also grow in a semi-shady environment, like a warm environment, and can be cold-resistant. The cultivation of witch hazel requires good light, proper shading in the early stage of growth, and the temperature can be maintained between 15 ℃-35 ℃. It can be cold-resistant in winter and has a strong ability to withstand cold.

Watering and fertilizing

Witch hazel likes wet soil and requires fertile soil. Properly water the soil during growth to keep the soil moist. Fertilization can be applied normally, fertilization can promote growth in early spring, and phosphate fertilizer should be applied once when flowering.

Reproduction method

Witch hazel can be propagated by sowing and propagation, which takes a long time. It can also be propagated by cutting, grafting and striping. Sowing is mainly spring sowing, cutting is carried out in the rainy season.

Matters needing attention in the culture of witch hazel diseases and insect pests

Witch hazel will be affected by diseases such as leaf spot and anthracnose in the process of culture, and these diseases can be treated by chemical spraying. Insect pests are mainly moths such as diamondback moth and leaf roll moth, which are artificially killed or used insecticides.

Pruning

Witch hazel needs to be pruned in culture and can generally keep the tree height below 2 meters. The main time of pruning is to cut off the residual flowers and trim the plant type to keep it graceful after flowering. Pruning in September is mainly to cut off messy branches to make normal branches grow, and to cut off cluttered branches from the base.