What to do if the leaves of Polygonatum odoratum turn yellow

The reason why the leaves of Polygonatum odoratum turn yellow

The yellowing or even withering of Polygonatum odoratum leaves is caused by a variety of reasons: pests and diseases, improper watering and fertilization, etc.

Pests and diseases

The main diseases and pests that cause the leaves of Polygonatum odoratum to turn yellow and wither are leaf spot disease, gray spot disease, purple ring disease, etc. These are basically fungal and bacterial diseases and pests of Polygonatum, which can cause Polygonatum to wither and die in severe cases.

Improper watering and fertilization

The growth environment and frequency of watering and fertilizing of Polygonatum odoratum will also affect its growth. Too dry or humid conditions or excessive fertilization will cause the leaves to turn yellow. In this case, more scientific daily care of Polygonatum odoratum is required, with regular watering and fertilizing to ensure that it grows in a suitable environment and temperature.

How to deal with yellowing leaves of Polygonatum odoratum

Pest and disease control

The main method of dealing with diseases and insect pests on the leaves of Polygonatum odoratum is to remove the withered leaves caused by the diseases and insect pests and treat them collectively. At the same time, pay attention to the hygiene of the planting environment and soil sterilization. For more information about diseases and pests of Polygonatum and how to deal with them, please see another article by the editor: A complete guide to diseases and pests of Polygonatum.

Scientific watering and fertilization

Don't overwater

Polygonatum is most afraid of waterlogging. Excessive watering will cause the soil to be over-humid for a long time, resulting in hypoxia, which will hinder the absorption of nutrients and respiration of the roots of Polygonatum. The scientific way is to control the amount of water and ventilate the soil frequently (loosen the soil).

Not too dry

If there is a short-term lack of water, the leaves will become lifeless, which is commonly known as wilting. In this case, you need to water it lightly, and then water it normally after the leaves have slightly recovered (stand up).

Maintaining the right temperature

In summer, avoid keeping Polygonatum in a hot and stuffy environment (above 30℃). In winter, excessive cold weather will cause the leaves to turn yellow or even fall off (not lower than 10℃). The scientific method is to ventilate more and avoid direct sunlight. Do not water at noon in summer, and the opposite is true in winter.

Reasonable fertilization

Excessive fertilization will cause water loss at the roots of Polygonatum odoratum and even death, leading to root rot, withering, etc. The scientific solution is to use thin fertilizer. If the leaves turn yellow, stop fertilizing immediately and water more often to filter out soil salt.

Well, the above are the main reasons why the leaves of Polygonatum odoratum turn yellow. If the Polygonatum odoratum in your home has the above-mentioned symptoms, please help her quickly! For more knowledge about the care of Polygonatum odoratum at home, read: Detailed explanation of the methods of planting and caring for Polygonatum odoratum at home!