Reasons for Yellowing Leaves on Chrysanthemums and How to Treat Them
Chrysanthemums come in a vast number of varieties, with bright, vivid flower colors and a very wide range of uses, making them an excellent choice as an ornamental plant. However, we find that during the care of chrysanthemums, their leaves can turn yellow, which greatly reduces their ornamental value. Let us analyze for you the reasons for yellowing chrysanthemum leaves and the solutions.
Chrysanthemum
1. Alkaline soil
Chrysanthemums prefer fertile, highly permeable, slightly acidic soil. Soil with a pH above 7.5 very easily causes leaf drop on the lower part of the plant or yellowing of the leaves of the whole plant. Solution: Water frequently with fermented rice-washing water or rainwater.
2. Too much watering
Watering too much causes waterlogging in the soil, which stays wet for a long time, has poor aeration and may even rot some of the fibrous roots, showing up as dull yellow, lusterless young leaves and shriveled new shoots. Solution: Water chrysanthemums on the principle of watering when the potting soil is dry, not watering when it is not dry, and watering thoroughly when you do water. In the hot summer climate, the potting soil dries out easily, so water thoroughly, but do not water at noon; water enough in the morning, and if the potting soil is dry at dusk, water once more. After rain, tip the pot to drain off excess water. When watering, prevent mud from splashing onto the leaves.
3. Too little watering
If chrysanthemums have not been watered thoroughly or have been dehydrated for a long time, the new leaves may still be normal in color, but the lower leaves gradually dry, yellow, drop off and age from the bottom upward. Solution: Chrysanthemums need plenty of water during the growing period. After the potting soil dries out, water once more, but be careful not to water when the midday sun is at its strongest.
4. Too much fertilizer
Applying too much fertilizer to chrysanthemums can also cause leaf yellowing. Solution: When fertilizing chrysanthemums, follow the principle of frequent light applications; once flower buds appear, it can be slightly stronger. For topdressing, use 2 parts decomposed soybean cake or sesame oil residue plus 8 parts clean water, applied once every 7-10 days. After buds form, use 1 part fertilizer plus 3 parts water, then mix in a small amount of potassium dihydrogen phosphate for topdressing. After application, promptly rinse the fertilizer solution off the leaves with clean water.
5. Damage from leaf blight
Infection by leaf blight is one cause of yellowing and withering chrysanthemum leaves, mainly affecting the flowers and leaves of chrysanthemums. Solution: Spray once every 15 days with a 500-fold dilution of wettable amobam or zineb.
What to Do When Chrysanthemum Leaves Turn Yellow: Solutions for Yellowing Chrysanthemum Leaves
Chrysanthemums are flowers with a relatively wide range of uses. Whether in the home, courtyard or other places, chrysanthemums are quite commonly displayed for ornament. What should you do when chrysanthemum leaves turn yellow? Let us look together below at the solutions for yellowing chrysanthemum leaves.
1. Alkaline soil
Chrysanthemums prefer fertile, highly permeable, slightly acidic soil. Soil with a pH above 7.5 very easily causes leaf drop on the lower part of the plant or yellowing of the leaves of the whole plant. Solution: Water frequently with fermented rice-washing water or rainwater.
2. Too much watering
Watering too much causes waterlogging in the soil, which stays wet for a long time, has poor aeration and may even rot some of the fibrous roots, showing up as dull yellow, lusterless young leaves and shriveled new shoots. Solution: Water chrysanthemums on the principle of watering when the potting soil is dry, not watering when it is not dry, and watering thoroughly when you do water. In the hot summer climate, the potting soil dries out easily, so water thoroughly, but do not water at noon; water enough in the morning, and if the potting soil is dry at dusk, water once more. After rain, tip the pot to drain off excess water. When watering, prevent mud from splashing onto the leaves.
3. Too little watering
If chrysanthemums have not been watered thoroughly or have been dehydrated for a long time, the new leaves may still be normal in color, but the lower leaves gradually dry, yellow, drop off and age from the bottom upward. Solution: Chrysanthemums need plenty of water during the growing period. After the potting soil dries out, water once more, but be careful not to water when the midday sun is at its strongest.
4. Too much fertilizer
Applying too much fertilizer to chrysanthemums can also cause leaf yellowing. Solution: When fertilizing chrysanthemums, follow the principle of frequent light applications; once flower buds appear, it can be slightly stronger. For topdressing, use 2 parts decomposed soybean cake or sesame oil residue plus 8 parts clean water, applied once every 7-10 days. After buds form, use 1 part fertilizer plus 3 parts water, then mix in a small amount of potassium dihydrogen phosphate for topdressing. After application, promptly rinse the fertilizer solution off the leaves with clean water.
5. Damage from leaf blight
Infection by leaf blight is one cause of yellowing and withering chrysanthemum leaves, mainly affecting the flowers and leaves of chrysanthemums. Solution: Spray once every 15 days with a 500-fold dilution of wettable amobam or zineb.
What to Do When Chrysanthemum Leaves Turn Yellow: What Are the Causes of the Yellowing
The chrysanthemum is a precious ornamental flower developed through long-term artificial selection and breeding, found throughout the towns and villages of China. As an ornamental plant, chrysanthemums can develop yellowing leaves, which greatly reduces their ornamental value. So what should you do when chrysanthemum leaves turn yellow?
What to do when chrysanthemum leaves turn yellow:
Alkaline soil
Chrysanthemums prefer fertile, highly permeable, slightly acidic soil. Soil with a pH above 7.5 very easily causes leaf drop on the lower part of the plant or yellowing of the leaves of the whole plant.
Solution: Water frequently with fermented rice-washing water or rainwater. However, do not use household wastewater casually, as it will affect the plant's growth.
Too much watering
Watering too much causes waterlogging in the soil, which stays wet for a long time, has poor aeration and may even rot some of the fibrous roots, showing up as dull yellow, lusterless young leaves and shriveled new shoots.
Solution: Water chrysanthemums on the principle of watering when the potting soil is dry, not watering when it is not dry, and watering thoroughly when you do water. In the hot summer climate, the potting soil dries out easily, so water thoroughly, but do not water at noon; water enough in the morning, and if the potting soil is dry at dusk, water once more. After rain, tip the pot to drain off excess water. When watering, prevent mud from splashing onto the leaves.
Too little watering
If chrysanthemums have not been watered thoroughly or have been dehydrated for a long time, the new leaves may still be normal in color, but the lower leaves gradually dry, yellow, drop off and age from the bottom upward.
Solution: Chrysanthemums need plenty of water during the growing period. After the potting soil dries out, water once more, but be careful not to water when the midday sun is at its strongest.
Too much fertilizer
Applying too much fertilizer to chrysanthemums can also cause leaf yellowing.
Solution: When fertilizing chrysanthemums, follow the principle of frequent light applications; once flower buds appear, it can be slightly stronger. For topdressing, use 2 parts decomposed soybean cake or sesame oil residue plus 8 parts clean water, applied once every 7-10 days. After buds form, use 1 part fertilizer plus 3 parts water, then mix in a small amount of potassium dihydrogen phosphate for topdressing. After application, promptly rinse the fertilizer solution off the leaves with clean water.
Damage from leaf blight
Infection by leaf blight is one cause of yellowing and withering chrysanthemum leaves, mainly affecting the flowers and leaves of chrysanthemums.
Solution: Spray once every 15 days with a 500-fold dilution of wettable amobam or zineb.