How do you care for a gardenia that has been ruined by poor care so it can burst into bloom again?
Today I saw a gardenia with yellow leaves, quite interesting. First of all, don't ask me about the ventilation issue, because this one was actually grown outdoors. Secondly, don't ask me about the watering issue either, because it was watered on schedule. But why is it turning yellow?
As I said at the start, there is no ventilation problem. So why does this gardenia still turn yellow? Actually the reason is very simple: soil problems account for 90%, followed by fertilizer problems. Alright, let's see how to solve it!
Problems caused by soil compaction
There are 2 reasons for soil compaction. The first is that the nutrient soil used is not good. The gardenia is a plant that likes slightly acidic conditions, so using garden soil easily causes compaction. Secondly, heavy use of chemical fertilizers also easily leads to soil compaction. So if you want to solve this kind of problem, the best way is to change the soil.
Secondly, according to the conservation of nutrients, plants continuously take up nutrients from the nutrient soil. We need to supplement effectively, but frequently using chemical fertilizers easily causes soil compaction in gardenias. At this time we can add organic nutrient solution; organic matter can improve the soil structure and also adjust the pH.
Some people say that for a gardenia like this, spraying a bit of ferrous sulfate will solve it. Actually that is wrong. I have told many people that spraying ferrous sulfate treats the symptoms but not the root cause, and the yellow leaf problem appears again and again. Moreover, the dosage will increase each time, and the frequency will increase again and again. In the end the gardenia will still turn yellow. This is because ferrous sulfate can supply sulfate radicals to the gardenia and adjust the pH, and the iron element can improve yellow leaves. But if the root and soil problems are not solved, it will eventually die.
As for nutrient solution, it not only has good and high-quality nutrients. It also has the ability to improve and regulate the gardenia, promote root growth, and adjust the soil pH value, thereby thoroughly solving the yellow leaf problem.