Orchids in China can be used for smelling and appreciating, and also for trading. The essence of its development is to pursue perfection and scarcity on the basis of beauty. The early orchid market was dominated by orchids, and orchids became popular in recent years. Now, they prefer dual-skill or even multi-functional varieties. Orchids appear more frequently in the market, and more people come into contact with them. People who have raised orchids will find that the color on their leaves sometimes fades back to green or even disappears.

First, the light is too weak.

In poor light environment, in order to grow, the leaves of Eupatorium adenophorum will improve the efficiency of photosynthesis by increasing the amount of chlorophyll in the leaves, which leads to the leaves turning green, which is why the leaves of Eupatorium adenophorum grow faster and greener in the shade.

Solution: Enhance the light and put Eupatorium adenophorum in a well-lit place, so that the chlorophyll in the leaves will not increase, but will make the artistic color brighter and evolve better. Enhancing illumination is the key to brighten the artistic color of orchid leaves.

Second, nitrogen fertilizer is too heavy.

When the nitrogen fertilizer in the pot is too heavy, the leaves will turn green. Nitrogen fertilizer can promote the production of chlorophyll, increase chlorophyll on leaves and make leaves greener.

Solution: The planting materials of artistic grass should be lighter, and plants rich in mineral elements and low in fertilizer, such as aeolian fossils and phytolith, should be planted to reduce the content of soft plants, reduce the amount of nitrogen fertilizer or not apply nitrogen fertilizer.

Third, directional culture.

After discovering the leaves of artistic green-leaf orchid varieties, when artistic orchid seedlings grow into big seedlings, the artistic varieties should be separated from the mother plant and cultivated separately, so that the genes to be cultivated can be inherited to the maximum extent. Without individual directional cultivation, unskilled mother seedlings will affect the change of artistic orientation, and the next generation may turn green.

Fourth, control moisture.

Artistic varieties should control the water content in flower pots and dry them as much as possible, so as to maintain the beauty of artistic colors and increase the contrast between artistic colors and cyan. Water can accelerate the formation of chlorophyll in orchid leaves. I have a very strong pot of early Kim Myung Soo Huang Hu spotted art grass, and the color of the old grass has not faded. After deliberately increasing moisture, the artistic color of the new grass did not change much, and the vermilion of the old seedlings faded quickly, and the contrast was greatly reduced.