What to do if magnolia leaves turn yellow

1. Change the pH

It is more suitable for growing in acidic soil. If the soil used for cultivation is alkaline, the plant will show adverse symptoms such as yellowing leaves due to the unsuitable growing environment, and may even cause root rot. If this is the reason, you need to spray the leaves appropriately with ferrous sulfate water, with about a week between each spraying.

2. Drain excess water

Its roots are fleshy, so if it is watered too much, the roots will rot easily and the leaves will turn yellow. At this time, the excess water should be drained as soon as possible, and if the root rot is serious, appropriate pruning is required. When there is no excess water in the potting soil, place it in a ventilated place and it will recover after a period of time.

3. Pest Control

If the plant is attacked by scale insects or red spiders, the leaves will turn yellow due to lack of nutrients. In severe cases, the plant may die. Once discovered, you should buy medicine for prevention and control as soon as possible. Scale insects can be captured or scraped off manually, and red spider mites can be sprayed with trichlorobenzene.