Cyclamen, as a common indoor ornamental plant, is loved by many for its bright flowers and unique leaf shapes. Many enthusiasts may encounter the issue of cyclamen leaves turning red during the maintenance process. This not only affects the plant's appearance but may also impact its growth. Why do cyclamen leaves turn red? This article will provide a detailed analysis of this phenomenon.
Soil issues1. Unsuitable soil pH: Cyclamen prefers slightly acidic soil. If the soil is too alkaline or acidic, it may cause the leaves to turn red. It is recommended to use soil with a pH value between 5.5-6.5.
2. Poor soil drainage: Accumulated water in the soil can lead to root hypoxia, causing root diseases and thus affecting leaf color. The soil should be well-drained.
Lighting issues1. Insufficient light: Cyclamen requires ample diffused light. If it is kept in a dark environment for a long time, the leaves may turn red. Cyclamen should be placed in a bright and well-ventilated area.
2. Excessive light: Intense direct light can burn the leaves, causing them to turn red. Avoid placing cyclamen in direct sunlight.
Watering issues1. Overwatering: Cyclamen is not tolerant of waterlogging. Excessive watering can cause root rot and leaf reddening. Follow the principle of "watering when dry and moist when needed" and water appropriately.
2. Insufficient watering: Prolonged lack of water can cause the leaves to lose water and turn red. The soil should be kept moist but not waterlogged.
Fertilizing issues1. Over-fertilizing: Excessive fertilizing can lead to high soil salinity, affecting plant growth and causing leaf reddening. Fertilize moderately and avoid over-fertilizing.
2. Under-fertilizing: Lack of nutrient elements can also cause leaves to turn red. Compound fertilizer and trace element fertilizers should be applied according to the growth stage of cyclamen.
Pest and disease problems1. Spider mites: Spider mites extract sap from the leaves, causing them to turn red. If spider mites are found, they should be treated promptly with pesticides.
2. Leaf spot disease: Leaf spot disease causes red-brown spots on the leaves, and in severe cases, the leaves may turn red. Diseased leaves should be promptly removed and treated with fungicides.
There are many reasons why cyclamen leaves may turn red, possibly due to soil, lighting, watering, fertilizing, or pest and disease factors. Understanding these causes can help us better care for cyclamen and ensure its healthy growth. During the maintenance process, we should pay attention to the plant's growth condition and adjust maintenance measures in a timely manner to ensure the beauty and health of cyclamen.
References:
《Indoor Foliar Plant Maintenance Manual》, China Forestry Publishing House, 2018.
《Flower Disease and Pest Control Technology》, China Agricultural Publishing House, 2017.