The latest clematis cultivation methods and precautions

Clematis, also known as Clematis Peony, Golden package Silver, Clematis, Weilingxian and so on, are herbaceous vines of the genus Clematis of Ranunculaceae. There are several species, varieties and their varieties and hybrids that can be cultivated for ornamental use in gardens. Enjoy the reputation of "queen of rattan flowers" and have a high ornamental value. Let's take a look at the breeding methods and matters needing attention of clematis.

Growth habits of Clematis

Clematis is distributed in Guangxi, Guangdong, Hunan, Jiangxi and other places. It is born in hilly shrubs in low mountain areas and is cultivated in Japan. Like fertile, well-drained alkaline loam, avoid stagnant water or summer drought and can not retain water. Strong cold resistance, can withstand-20 low temperature. If there are red spiders or leaf-eating pests, ventilation should be strengthened.

Propagation methods of Clematis

1. Sowing: the original seed of clematis can be propagated by sowing, germinate after sowing in spring for about 3-4 weeks, and germinate in autumn when spring is warm.

2. Striping: Clematis clematis is propagated in March with one-year-old mature branches, usually rooting within one year.

3. Ramet: clematis tufted plants, can be ramified.

4. Cuttage: cutting is the main propagation method for hybrid clematis.

Culture methods of Clematis

1. Temperature: the optimum temperature for clematis growth is 15: 17 ℃ at night and 21: 25 ℃ at day. When the summer temperature is higher than 35 ℃, it will cause clematis leaves yellowing and even falling leaves, so cooling measures should be taken in summer. In November, the temperature continues to drop, and clematis will enter a dormant period when it is below 5 ℃. In December, Clematis completely entered the dormant period, and the leaves began to fall in the first and second weeks of the dormant period.

2. Lighting: clematis needs more than 6 hours of direct light every day, which is very beneficial to its growth, although spots will occur in hot weather. Potted clematis is cultivated under full light from autumn to early spring of the next year without shade. After entering summer, it is necessary to prevent strong direct light and appropriate shade. Otherwise, it is easy to cause the leaves of clematis to be aged, withered and yellow and grow poorly.

3. Watering: clematis is very sensitive to water and should not be too wet or too wet, especially in the period of high temperature in summer, the matrix should not be too wet. Generally, it is watered every 3-4 days during the growing period, when the substrate is dry but the plant does not wilt. During the dormant period, as long as you keep the matrix moist. Do not let water accumulate on the leaf surface or at the base of the plant when watering, otherwise it is easy to cause disease.

4. Fertilization: before sprouting new buds in late February or early March, clematis can apply a little compound fertilizer with a NPK ratio of 15:5:5 to accelerate growth, and apply phosphate fertilizer once in April or June to promote flowering. Usually use 150mg / kg 20:20:20 or 20:10:20 water-soluble fertilizer, in the growth period to 200mg / kg, spray 2 times 3 times a month.

5. Pruning: the purpose of clematis pruning is to have more flowers in the plant, usually once a year, to remove some overdense or thin branches, and to make the new branches extend to each direction. The time of pruning should be determined according to the flowering period of different varieties. Early flowering varieties (flowering from April to May) should be pruned after flowering, that is, from June to July, to remove the excess branches, but the Lignified branches should not be cut off. If pruning before then, it will lead to the failure of flowering in the same year.

Matters needing attention in clematis culture

1. Pay attention to adequate water supply in the first few months after clematis planting, and the diameter of the water supply range is not less than 50 cm, so that the root can stretch around, and special attention should be paid to drainage at the same time.

2. When clematis is planted, the hole is generally 40 cm deep and 60 cm in diameter. After loosening the hard soil at the bottom of the hole, a large amount of humus is put in, and then the topsoil mixed with bone powder is added. Note that the branches are brittle and easy to break, so attention should be paid to attraction and fixation.

3. Clematis in poorly drained clay or light sandy soil, mix-shovel peat soil or humus after digging at the bottom of the hole, and use stones or rubble at the bottom where water may accumulate, 25 cm higher than the surrounding soil surface.

4. The disease of clematis has Fusarium wilt, which is likely to occur on rainy days in summer, when the temperature rises sharply, the branches suddenly wither, and new techniques often sprout in autumn or the following spring. Others have powdery mildew, virus disease, etc., sprayed with 1000 times of acetic acid solution of 10% antibacterial agent.

5. Clematis pest is harmed by red spider and diamondback moth, which is sprayed with 1000 times of fenitrothion EC.