1. The first situation is that the leaves are short of iron, so the green of the leaves is not very fresh, even a little yellow. If it is serious, the leaves will wither, and then the whole tree is likely to die.
If this is the case, you can spray some in the proportion of 0.2 to 0.5% of the iron solution, which can be successful prevention and treatment.
2. The second situation is the lack of magnesium, which will lead to yellow disease, spreading from the older leaves to the new ones. Although the leaves are still green, they will also dry and fall off when they are serious.
If this is the reason, you can spray some 0.7 to 0.8% boron magnesium fertilizer.
3. The third situation is the lack of nitrogen element. In this case, its leaves will become yellow and withered, and the leaves will grow very small and brittle.
If this is the case, apply nitrogen gradiently
4. The fourth situation is the lack of potassium, and the leaves turn from green to brown. In these cases, the leaves look like withered.
If this is the case, potassium fertilizer should be applied gradiently.
5. The water is too much, or the temperature is too low, which causes it to be frozen, and the leaves will be easily dried, so you must take good care of it.
If this is the case, change the soil in time to increase the temperature, take good care of
1. This kind of flower likes acid soil, which can make it grow very thick. If you live in the north, most of the soil is alkaline, so your leaves are easy to turn yellow or wither, so if you buy back gardenia, use acid soil to cultivate it
2. If it's summer, the light is very strong, and its branches and leaves are prone to sunburn. If it lasts too long, the injured leaves will wither. So we should put it in the half shade area, and don't directly pour water on it, you can spray water on the leaves, generally it will be rejuvenated in about 15 days, if all the leaves of your tree are withered, there is no way to save it.
3. If the leaves of your tree are dry, you should readjust your way of care, pay attention to the condition of its roots from time to time, don't always water it, wait until the leaves stretch out and then return to the normal way of maintenance.