Gardenia jasminoides

What if the leaves turn yellow

1. When watering, add 1 ~ 3 drops of vinegar, especially the Gardenia friends in the north. The alkaline soil is the main reason for the yellow leaves of Gardenia. Or pour 0.2% ferrous sulfate

If this is true for both new and old leaves, it is obvious that the soil is alkaline

2. Another reason is that there is too much watering

As shown in the figure below, the leaves at the bottom begin to turn yellow, and the young leaves at the top remain unchanged

And the veins are green, only the mesophyll is yellow, that is, watering too much

Loosen the basin soil, put it on the balcony with good light, open the window for ventilation, and let the water in the soil evaporate as soon as possible. At the same time, it is a waste of nutrition to remove the yellow leaves and keep them

The later maintenance and watering should be appropriate. If you can't water, use a stupid method. Find a small stick and insert it into the soil for 3 ~ 4cm, let it stand for 10 minutes, and then pull it out. If the stick is just wet with some water, you can water it. You can't wait until the stick is completely dry. It's not good for gardenia. After all, gardenia likes to be wet

In addition, after watering, spray water on the leaves of Gardenia every day. Gardenia is native to the south. Imagine the humidity in the south, at least more than 50%

3. It's easy to recognize the symptom of more fertilization. Look at the yellow leaves. If the veins turn yellow and there is a little green on the edge, it's more fertilizer

In the figure below, the veins have completely turned yellow, while the mesophyll can still see part of the green

There are two ways to deal with fertilizer and yellow. One is to irrigate roots with water, that is, after watering through the water, pour it for 5 ~ 10 minutes to let the nutrients in the soil flow out with the water; It's not easy to remove the soil from the old pot and replace it with another one

What about falling buds

1. As a result of great changes in the environment, the newly bought Gardenia full of flower buds will definitely fall off. It needs a process of serving pots. Keep the soil moist during this period of time. Don't apply fertilizer. Put it in the scattered light for maintenance. After taking the basin, it won't fall off again

2. The water is big, which is the most common reason. Flower friends can think about whether they have watered a little more recently. Generally speaking, in northern spring, gardenia can be watered 2 ~ 3 times a week ~ usually, you can spray more water on the leaves and around the Gardenia to increase the air humidity

3. Add water to fertilize the bean cake once a week. Of course, it's not enough to wash the bean cake once a week

4. The light is too strong. Gardenia doesn't need particularly strong light. Just put it where the sun can shine in the morning, and scatter light for the rest of the time

What if it doesn't bloom

1. Insufficient phosphate fertilizer

If there is no flower bud, it is insufficient phosphorus and potassium fertilizer. It is best to apply more phosphorus and potassium fertilizer and less nitrogen fertilizer before flower bud differentiation! Less! More will suppress the differentiation of flower buds! Phosphorus and potassium fertilizer can be bought professionally, or you can use rotten fish and shrimp shells, fish intestines, egg shells, rice washing water and so on! Also once a week

2. No trimming

In spring, the bare branches, thin branches and dead branches of Gardenia should be cut off. These branches also consume nutrition. If your Gardenia grows with open teeth and claws, don't hesitate to trim it quickly

The Cross branches, overlapping branches and drooping branches listed in the figure below should be cut off~

3. The indoor temperature is too high in winter

Gardenia is dormant or semi dormant in winter, and the room temperature is about 5 degrees. Too high room temperature affects the full dormancy of flowers and trees or premature budding and leaves, consumes a lot of nutrients, and is easy to grow weak and do not bloom the next year

In this case, it is necessary to apply fertilizer, and it must be a fertilizer with balanced nitrogen, phosphorus and potassium. For example, bean cake water and chicken manure can be used