Kalanchoe, loved by many for its long blooming period, bright flowers, and symbol of longevity, often presents a common issue among its enthusiasts: improper fertilization leading to yellowing leaves. This article will analyze the reasons behind the yellowing of Kalanchoe leaves and provide techniques for scientific fertilization to aid in the healthy growth of your plants.
Reasons for Yellowing of Kalanchoe Leaves1. Excessive Fertilization
When too much chemical fertilizer is applied to Kalanchoe, it can lead to the accumulation of salts in the soil, causing soil compaction, which affects the roots' absorption of water and nutrients, resulting in yellowing leaves.
2. Improper Fertilization
Using the wrong type of fertilizer or fertilizing at an inappropriate time can also cause Kalanchoe leaves to yellow. An excess of nitrogen fertilizer can lead to excessive plant growth, neglecting the supplementation of other elements.
3. Soil Issues
Soil that is too poor or too heavy can cause Kalanchoe leaves to yellow. Soil waterlogging or poor drainage can also lead to root diseases, which in turn cause leaves to yellow.
Scientific Fertilization Techniques1. Moderate Fertilization
Fertilize Kalanchoe appropriately based on its growth stage and needs. Generally, fertilize once or twice a month during the vigorous growth period, and reduce the frequency during the blooming and dormant periods.
2. Choose the Right Fertilizer
Select compound fertilizers rich in nitrogen, phosphorus, and potassium, and supplement with trace elements like calcium and magnesium. Avoid overusing nitrogen fertilizers to prevent excessive vegetative growth, which can affect blooming.
3. Timing of Fertilization
Fertilize during the plant's vigorous growth periods, such as spring and autumn, and avoid fertilizing in high temperature and humidity conditions to prevent diseases and pests.
4. Control the Amount of Fertilizer
When fertilizing, follow the recommended dosage on the fertilizer instructions. Over-fertilization can lead to fertilizer damage, affecting the growth of Kalanchoe.
5. Pay Attention to the Method of Fertilization
Spread the fertilizer evenly on the soil surface and then lightly cover with soil. Avoid applying fertilizer directly to the plant roots to prevent root burn.
There are many reasons for the yellowing of Kalanchoe leaves, among which improper fertilization is one of the main causes. Mastering scientific fertilization techniques can effectively prevent leaf yellowing. I hope this article can provide you with useful references for the healthy growth of your Kalanchoe.