cause analysis
1, the ambient temperature is not enough, and the air conditioner is often turned on in the room, which is not conducive to its growth even in summer. It should be controlled between 25 ~ 32℃.
2. The air is too dry, especially in rooms with wooden floors or carpets.
3, the light is weak for a long time, such an environment can not grow, and the light should be gradually strengthened. Now it can be placed in sufficient places, where there is no shade or sunshine!
4, improper watering and no fertilization for many days, watering can be carried out after the topsoil is dry; Watering it once a month can make it flourish.
solution
If the tree doesn't grow new leaves, first look at whether the roots are rotten and whether the soil is a substrate that can both drain water and retain water. Remove rotten roots, disinfect and replant. Christmas trees like warm and hot places, no frost and snow, foggy and high temperature, and no tolerance to drought, stagnant water and cold and dry air. Therefore, if you want to grow new leaves on the safe tree, you must see the light and fertilize regularly. Generally, you will start to grow leaves at a constant temperature of 25 degrees Celsius!
The Christmas tree needs a certain amount of light, but it is relatively shade-tolerant. Young trees are resistant to shade and like to grow faster in shade. 6- 10 annuals need sufficient light and should be placed in semi-shady environment in summer. If the light is too strong, the leaves will turn yellow and fall off.
If there is not enough sunshine during the growth of the tree, too much or too little watering may cause the leaves to fall or fail to grow new leaves. Potted safety trees can be planted in the shade or under the awning after summer, and the effect is good, and water is often sprayed on the leaves. Watering once a week, timely fertilization would rather be less than more. Especially after the heavy rain, check the flowerpot in time, and if there is water in the flowerpot, dump it as soon as possible.