When orchids are not in bloom, they are mainly for viewing the leaves. If you take good care of the leaves, making them green, shiny and elegant, their ornamental value is no less than when they are in bloom. However, the orchid leaves of some flower lovers always look yellow, not shiny and green enough, and lack vitality. If your orchid does not have yellow leaves or dry tips, and can produce new seedlings normally, but the leaves are not emerald green, then it is a problem of maintenance. If you make timely adjustments, the leaf color will return in about a month. To solve the problem of orchid leaves not being emerald green and shiny, we will teach you 3 methods. Then each leaf will look like an "emerald green belt" and have high ornamental value. In fact, if you want to make orchid leaves green and shiny, you must take appropriate measures based on the natural conditions of the maintenance environment. For example, shade maintenance, water and fertilizer supply, and the pH value of the planting material can meet the needs of orchid growth. In this way, the orchid leaves can be kept green and grow vigorously and shiny . The following points need to be done: 1) Lighting adjustment should be appropriateOrchids are plants that like scattered light, so they should not be exposed to excessive sunlight. Especially in the hot summer and early autumn, when the ambient light intensity is too strong, the leaves of orchids will appear old and hard, and in severe cases, some leaves will have sunburn spots. Therefore, there must be a shade net in the growth environment of orchids, and shade should be provided according to different seasons. The shading rate should reach 80%~90% in the hot summer and autumn seasons. 2) Water and fertilizer supply needs to be appropriateOrchids need more water when their roots are extending and leaf buds are sprouting. If the water supply is insufficient, the orchid leaves will turn light yellow and become dull due to lack of water. Therefore, the orchid should be watered in time, and the orchid pot should not be dry and lack of water due to excessive drought. During the vegetative growth period of orchids, nitrogen fertilizer should be added to enhance the chlorophyll synthesis of the leaves. Orchids that lack nitrogen fertilizer will have yellow leaves and look lifeless. Nitrogen fertilizer should be mainly 1000-2000 times urea solution. You can also use organic fertilizer solution made from rapeseed cake and fish, which contains more nitrogen and can be diluted 100 times with water before application. 3) The pH of the planting material is appropriateThe dull leaves of some orchids are closely related to the pH value of the planting material. Especially for the orchids, the front of the leaves turn yellow first, and then turn gray-brown after a long time. This is caused by the alkaline pH value and water content of the planting material. Orchids grow best in slightly acidic soil, with a pH of 5.5 to 6.5, so 1000 times diluted ferrous sulfate should be used to spray the leaves or water the plants. |
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