The culture method and pruning method of keel flower, reasonable watering should avoid applying thick fertilizer, and the basin should be changed for 2 years.

Select soil: it is appropriate to choose fertile and loose culture soil. Light temperature: shading in summer and turning to yang in winter, the overwintering temperature should reach 10 ℃. Water and fertilizer management: water once every 10-15 days in spring and autumn, every day in summer, keep dry in winter, fertilizer with granular compound fertilizer or self-made alum fertilizer water, avoid concentrated fertilizer. Pruning: timely pruning can prevent the aging of the base, properly prune the weak buds and old branches, and secure the stick when the whole plant grows to 2-3m.

I. Culture methods of Dragon Bone Flower

Keel flower from Namibia, also known as Triangle King whip, Caiyun Pavilion, keel column, is a very easy to feed a kind of lazy flower. The mature keel flower grows at a height of 2-3 meters and a leaf length of 2-4cm. The whole plant is shrubby and has the characteristics of fresh and tender flesh, dense branches and so on. The base is whorled in a circle around the trunk, with 3-4 serrated edges, growing vertically upward and prickly.

1. Select soil

Keel flowers grow in fertile, loose, humus-rich soil, there is no very strict requirements for the choice of soil, the general culture soil can grow normally. Pot planting keel flower can be self-made culture soil, with 1:1 proportion of humus soil and coarse sand fully mixed evenly, and then add mature chicken manure or cow manure.

2. Light temperature

Summer: the keel flower is mainly fruit, in order to better maintain the keel flower in summer, it should be shaded, preferably in a half-shaded and half-sunny place, such as near the window of the sun. On the one hand, it not only controls the excessive light, on the other hand, it also prevents the temperature from getting too high.

Winter: the keel flower likes the sun and is afraid of the cold. It is most appropriate to control the temperature at about 10 ℃ when overwintering, to prevent frost injury, and when it is cold in winter, the keel flower for indoor viewing needs sufficient light and should be placed in the sunny place indoors for a fixed interval of time to turn the basin, which can effectively prevent decay.

3. Water and fertilizer management

Watering: keel flower is a drought-resistant but not moisture-resistant crop, so proper watering is very important for keel flower, and the watering method can be adjusted according to each season.

(1) watering every 10-15 days in spring and autumn, it is best to spray water on the leaves of keel flower every day.

(2) the high temperature water in summer is easy to evaporate, so it is appropriate to water the keel flower once every morning or evening.

(3) in the dormant period of keel flower in winter, it is necessary to keep the soil dry and not to water too much to prevent rotting roots. If it is necessary to overwintering, plastic film can be used to cover the whole potted plant and wrap the whole plant, which can maintain the suitable temperature of the environment and ensure the air humidity.

Fertilization: the demand for fertilizer of keel flower is relatively random, it only needs to apply light fertilizer once in half a month or so, which can meet the basic growth of keel flower. It is best to use granular compound fertilizer or self-made alum fertilizer water, avoid thick fertilizer, in order to prevent the root rot caused by crop overnutrition.

Second, the pruning method of keel flower

The florescence of keel is from May to November, and it grows repeatedly for 7-8 cycles, with an interval of about 20 days per week. Pruning the plant in time can keep the keel flower growing at the base to prevent aging. Reasonable pruning of the old branches and weak buds can make the new buds nutritious, promote root development and bloom luxuriantly.

1. When the first floor is 20-30cm, cut off the top, then seal it with plant ash immediately, keep three branches, and don't want the rest.

2. When the second floor is 25-30cm, the top is cut off and three branches are still selected as above.

3. When the height of the whole plant is 2-3m, the branch will grow a lot of branches, and the weight of the branch will far exceed the weight of the whole plant.

Matters needing attention of Dragon Bone Flower

1. Keel flowers need to be changed every two years.

2. There are small thorns on the stems and leaves of the keel flower, so be careful not to get caught.

3, tear open the rhizome has milky white juice, is toxic, be careful not to eat or get into the eyes.

4. it should be placed away from the elderly and children at home, so as to avoid accidental ingestion or injuries.