Nandina, as a common indoor ornamental plant, is loved by many plant enthusiasts for its unique ornamental value and easy maintenance. However, it is not uncommon for the leaves of Nandina to turn yellow during maintenance, which can be frustrating. What are the reasons for the yellowing of Nandina leaves? This article will provide a detailed analysis of the causes of yellowing leaves in Nandina, helping you solve this problem.
Soil problems1. Soil waterlogging: Nandina is not tolerant of waterlogging. If the soil is waterlogged, the roots can rot, causing the leaves to turn yellow. It is recommended to choose soil with good drainage and avoid excessive watering.
2. Soil compaction: Soil compaction can affect the root respiration, leading to poor nutrient absorption and yellowing leaves. Regularly loosen the soil to keep it loose and breathable.
Improper watering1. Excessive watering: Nandina is not tolerant of waterlogging. Too much watering can cause root rot and leaf yellowing. Watering should be moderate, keeping the soil slightly moist.
2. Insufficient watering: Nandina prefers a humid environment. If watering is insufficient, the leaves will also turn yellow. Water according to the dryness or moisture of the soil.
Insufficient lighting1. Insufficient lighting: Nandina prefers scattered light. If it is kept in a dark environment for a long time, the leaves will turn yellow. Place Nandina in a bright indoor area, avoiding direct sunlight.
2. Excessive lighting: Long exposure to direct sunlight can cause the leaves of Nandina to turn yellow and dry. Adjust the placement position appropriately to avoid direct sunlight.
Improper fertilizing1. Over-fertilizing: Excessive fertilizing can lead to high soil salinity, root damage, and leaf yellowing. Fertilize reasonably and follow the principle of "frequent application of thin fertilizer".
2. Insufficient fertilizing: Long-term lack of fertilizing can lead to slow growth of Nandina and yellowing leaves. Fertilize in a timely manner to supplement nutrients.
Pests and diseases1. Red spider mites: Red spider mites can cause the leaves of Nandina to turn yellow and fall off. If red spider mites are found, spray with insecticide immediately.
2. Grey mold: Grey mold can cause the leaves of Nandina to turn yellow and rot. If grey mold is found, spray with fungicide immediately.
There are many reasons for the yellowing of Nandina leaves, including soil, watering, lighting, fertilizing, and pests and diseases. Understanding the reasons for the yellowing of Nandina leaves can help us better care for the plant and ensure its healthy growth. During maintenance, note the following points:
1. Choose soil with good drainage and avoid excessive watering;
2. Keep the soil loose and breathable, and regularly loosen the soil;
3. Place Nandina in a bright indoor area, avoiding direct sunlight;
4. Fertilize in a timely manner to supplement nutrients;
5. Prevent and treat pests and diseases promptly.
Hope this article is helpful to you. Wishing you success in growing Nandina!