Gardenia always has yellow leaves and won't bloom? Add a little of this at this time and it's easily solved
Gardenia prefers acidic soil. If the soil is alkaline, gardenias are often difficult to grow well, and bud drop and yellow leaves are common occurrences. Today I'll share with you how to make the soil acidic.
Many people say rice water works well, can change the acidity and alkalinity of the soil, and can also serve as fertilizer. That's indeed true, but it must first be fermented. Seal it well, and after two weeks it will be fermented. Just water the flowers at a ratio of 1:20, and water frequently.
But if the rice water has not fermented properly and is given to plants, not only will it be ineffective, it will also easily cause various problems. Among these, the appearance of small insects is rather troublesome. For example, a large number of white worms appearing in the soil or attracting a large number of small black flies - I'm sure you don't want it to look like that.
At this point, although traditional insecticides can clean it up, no one wants this to happen, since using pesticides is also bad for the home environment. So for those growing gardenias, I suggest choosing a good organic nutrient solution, which is safer. This kind of nutrient solution is made by fermenting sugarcane; in principle it's the same as fermented cake fertilizer, but its effect is far better than cake fertilizer.
Soaking apples in water and watering with it can also change the acidity and alkalinity. When eating an apple, keep the peel and the core, put them in water and soak overnight, then use it to water the flowers. This can also improve alkaline soil very well, and gradually the gardenia will bloom bigger and bigger and more and more fragrant.
You can also directly water the gardenia with a little vinegar, but the ratio must be adjusted properly. It's recommended to use salt-free rice vinegar, mixed at a ratio of 1:50. Water several times, and it can quickly change the acidity and alkalinity of the soil. Once the soil is changed, the gardenia's buds will also pop out in abundance. Of course, you can also use ferrous sulfate, which is almost a necessity for growing gardenias in the north. But whether using vinegar or ferrous sulfate, solving gardenia yellow leaves only treats the symptoms, not the root cause. Use it once and it works once; stop using it and the leaves start turning yellow again. This back-and-forth also affects the gardenia's growth. I think we still need to start with the soil and fertilizer. We can choose a good nutrient soil, for example slightly acidic with a pH between 5 and 6. Then use a slightly acidic nutrient solution to promote roots. With good roots and good soil, only then can the yellow leaf problem be thoroughly solved.
These are all commonly used folk methods, and improper handling can easily kill the gardenia, so be careful not to overdo it. Nowadays there are professional liquid flower fertilizers for gardenias on the market, with reasonable formulas - just add water and water the flowers. It's simple to use, saves trouble, and easily helps you grow the flowers well.