Many people like to raise gardenias, but raising gardenias at home is easy to cause the leaves to yellow, dry and fall off. What causes it? How to prevent and treat it?
In fact, the first reason why gardenia has yellow leaves is caused by the alkalinity of the pot soil. Because gardenia is a flower in the south, it likes acidic soil. It should be raised at home to keep the soil acidic as much as possible. We can add some fermented pine needles when mixing the soil, so that there will be no problems. We can also water ferrous sulfate regularly once a month or two, which can also ensure that it does not have new leaves growing in other places with green veins.
the second situation is that the leaves on the bottom are yellow and fall off in a large area. The main reason for this situation is the lack of fertilizer. Many gardenias will stop fertilizing them, especially when they are in bloom, or they will basically not supplement fertilizer during the maintenance process, or even cultivate them with garden soil. It is normal that the leaves on the bottom are yellow and fall off in a large area due to lack of nutrients. Fertilizer is essential for us in both the growing season and the flowering season. Generally, multi-element fertilizers with balanced nitrogen, phosphorus and potassium are used in the growing season, such as multi-element nutrient solution or compound fertilizer, and the concentration is lower, 2-3 times a month. Before his flowering season comes, that is, after entering the spring, he begins to use phosphorus and potassium fertilizers, and potassium dihydrogen phosphate ensures sufficient supply, and nutrients are not lacking, so yellow leaves are not easy to occur.
The third situation is that gardenia loves water because of improper watering, so many flower friends will water it in a large area, and the pot soil is directly watered before it is dry. In this way, due to poor indoor ventilation, some roots will rot, and some roots will rot, accompanied by a large area of yellow leaves at the bottom, and even the newly grown leaves at the top will turn black and dry. This is a situation where excessive watering leads to root rot. If you are short of water for a long time, and the water-deficient leaves wilted, you can recover after watering, but the leaves under it will also turn yellow and fall off in a large area, and the whole plant will dry up and die if it lasts for many times. Therefore, it is necessary to control the watering of gardenia flowers. Generally, the soil is breathable, and the pot should not be too large. The principle of watering is to water it thoroughly in time when the soil surface is dry, so that there will be no problems.
When gardenias are raised at home, the leaves turn yellow, dry and fall off. These three reasons are the most common. If you analyze them properly according to your situation, there will be no problems. If gardenias are raised normally, you must choose a pot with a suitable size, don't water them too deep. When the soil is dry, water them thoroughly in time, put them in a well-ventilated place, give them enough light, and don't lose fertilizer, so that we can raise them.