Culture methods and matters needing attention of cold water spray

Cold water flowers, also known as transparent grass, transparent white grass, aluminum leaf grass, are perennial herbs of Urticaceae, with beautiful leaf patterns, plant-type mother-in-law and shade tolerance, and can be arranged on tea tables and flower racks with scattered light for a long time, or can be configured with other plants, or as hanging pots hanging in the corner or conspicuous place, let's take a look at the breeding methods and matters needing attention of cold water flowers.

The growth habit of cold water spray

Cold water flowers like warm, humid climate, loose and fertile sandy soil, suitable for growth of 15 ℃ to 25 ℃, no less than 5 ℃ in winter. Found in Guangdong, Guangxi, Hunan, Hubei, Guizhou, Sichuan, southern Gansu, southern Shaanxi, southern Henan, southern Anhui, Jiangxi, Zhejiang, Fujian and Taiwan. Born in valleys, streams or under forests, 300-1500 meters above sea level. It is distributed in Japan and Vietnam.

The Propagation method of Cold Water spray

The main results are as follows: 1. Ramet: the clump of cold water is very strong, so the whole column can be divided into several parts and put on the basin respectively by turning the basin and changing soil. At the same time, the old stem is truncated, and the basal 2-3 nodes of the stem are retained. After survival, the axillary buds can germinate quickly and produce new lateral branches.

2. Cutting: the top of the stem is often used as the cutting in May, and the medium is river sand or vermiculite to root in about 10 days under the suitable temperature. When the new bud lengthens from 3 cm to 5 cm, use sandy soil on the basin, pour enough water to fix the root, and transfer to normal management.

Culture method of cold water spray

1, soil: cold pot soil had better use humus-rich, loose, fertile loam. Keep the basin soil moist and should not be too wet, otherwise the root is perishable and requires high air humidity. Rotten organic fertilizer should not be used too much urea, such as nitrogen fertilizer is easy to grow crazy, which is not conducive to the appearance of the plant. When the phosphorus and potassium fertilizer is insufficient, the markings on the leaves are easy to fade.

2. Lighting: cold spray is a kind of indoor flower with beautiful leaf color, which is very shade-resistant, but prefer sufficient light, and should avoid direct light. Flowerpots are placed in the north window in summer and in the south window in winter. If the light is too dark, the color of the leaves will fade. If the sun is too strong, the leaves will be burned. The suitable temperature for growth is 18-22 ℃, and the overwintering temperature should not be lower than 7 ℃.

3, fat water: cold water flowerpot soil remains dry but not cracked, moist but not wet is better. Spraying water to the leaf surface in summer can keep the leaf surface clean and shiny, and the leaf surface sprays less water in winter, otherwise the leaf surface will appear black spots, or even black and rotten. Watering 28% or 37% liquid nitrogen fertilizer at a time in about two weeks during the growing period makes the plant strong. After autumn, increase the application of phosphorus and potassium fertilizer to strengthen the stem and prevent lodging.

4. Pruning: the cold spray is resistant to pruning, and the cuttings can be removed once after the cuttings are put on the pot. when the new lateral branches grow to 4 leaves, 2 leaves are left to pick the heart, so repeatedly, a multi-branched plump hemispherical plant shape can be formed. When the old plant grows too tall, it can leave the base 2-3 nodes when changing pots in spring, re-cut it short, pick the heart 2-3 times after sending new branches, and form a short and compact plant shape.

5. Diseases and insect pests: the common leaf spot disease of cold water spray can be prevented by spraying 200 times Bordeaux liquid. The basin soil is too wet, which is easy to produce root rot, so it can be irrigated with 1000 times solution of topiramate. When root nodule nematodes are found, 3% carbofuran can be applied to control. It is harmful to scale insects and is sprayed with 1000 times of omethoate. If the beetle bites the leaves, it can be killed manually or sprayed with 1000 times the liquid of trichlorfon.

Matters needing attention in cold water

The main results are as follows: 1. The cold spray should be changed at least once a year in spring, fertilized in about a week during the growth period, and fertilized once with nutrient solution.

2. When the cultivation time is too long and the growth is slow, it should be pruned in time, otherwise it will lead to the decrease of ornamental effect.

3. Cold spray likes strong scattered light, covering more than 70% of the sun in summer, the leaves will be burned if the sun is too strong, and there is no need for shading or slight shading in winter.

4. The temperature of cold water should be kept above 13 degrees Celsius when overwintering. If the long-term temperature is lower than 10 degrees Celsius, it will be hurt, but there will be no injury for about 5 ℃ in a short time.

5. Cold spray likes a humid environment and often keeps the spray moist and high air humidity. In the dry season, you can often spray water to the surrounding environment or foliage.