How to raise Jasper

1. Matrix: like to grow in loose and fertile sandy soil with good drainage and rich in humus, and have poor growth potential in clay. Generally, the substrate can be mixed with rotten leaf soil, river sand and a small amount of mature organic fertilizer, and peat soil and perlite can be mixed under certain conditions.

two。 Lighting: like semi-overcast or scattered light, except for sufficient light in winter, shading is needed in other seasons, especially in summer. If placed in a shady environment, it is easy to grow, the branches grow, and the ornamental is reduced, which is not advisable. Under the semi-overcast condition, the leaf color is brighter and the gloss is better, especially the variegated leaf variety, the demand for sunlight is a little higher.

3. Temperature: like the warm environment, the suitable temperature for growth is between 20-30 ℃, the overwintering temperature is better kept above 10 ℃, the growth stops below 10 ℃, and it is easy to freeze under 5 ℃.

4. Humidity: like the humid growth environment, grow luxuriantly in the humid environment, bright leaf color, strengthen foliar spraying or sprinkling water in the growth environment when the temperature is high or the air is dry, in order to maintain high air humidity, which is very beneficial to the growth of the plant. It can also adapt to a short dry environment, but not for a long time, generally should be kept at about 70%.

5. Watering: prefer water, not resistant to drought, watering frequently during the growing period, watering more water when the temperature is higher than 25 ℃ or when the air is dry, but also to prevent waterlogging, when the temperature is lower than 25 ℃, the basin soil surface should be watered thoroughly when the temperature is less than 10 ℃, it can be dried for several days without watering.

6. Fertilization: a small amount of fertilizer is needed when the temperature is higher than 18 ℃, and less or not when the temperature is lower than 18 ℃ or higher than 30 ℃. Fertilization should be carried out in a small amount and many times, and it is best to use diluted fertilizer solution instead of clear water. It is not tolerant to raw fertilizer and thick fertilizer, and it is easy to cause fertilizer damage. Foliar spraying fertilizer solution can also be used for fertilization, and the effect is good. Fertilizers are mainly nitrogen fertilizer and potassium fertilizer, followed by phosphate fertilizer.

7. Pruning and reproduction: the newly propagated seedlings will pick the heart to increase the number of branches when the seedling is about 10 meters high, so that the plant type is fuller and the appreciation value is higher. The pruning of large plants is generally determined according to the growth trend, short cut and long branches, which can be used as cutting material, easy to take root, can be inserted in clean river sand or vermiculite, or directly in sandy soil. Propagation can also be carried out by leaf cuttings and ramets. In general, the ambient temperature for reproduction is between 20-25 ℃, and leaves need to be inserted with petiole, erect or slightly inclined in the river sand, and the depth of sand entry is petiole. keep the substrate moist and high air humidity, and rooting and adventitious buds can take place in 2-3 weeks. The small buds can be transplanted after they are slightly larger.

8. Hydroponic culture: the longer branches can be cut directly or the whole basin can rinse the substrate and then hydroponic culture. The ambient temperature of cutting branches is about 20-25 ℃, and the new roots can grow in about 2 weeks.

9. Diseases and insect pests: Douban green has fewer diseases and insect pests, and the general diseases are caused by improper nursing and environmental discomfort, which can be gradually recovered under adjustment. Pests are mainly harmed by red spiders, but can be prevented when maintaining high air humidity, and can be prevented by wiping leaves with wet cloth or spraying special insecticides when they occur.