What causes the leaves of hydrangeas to curl? Why do hydrangea leaves curl?

What Causes Hydrangea Leaves to Curl

The editor will answer the topic of why hydrangea leaves curl, and the editor will introduce the following.

What Causes Hydrangea Leaves to Curl

If the growing temperature of hydrangea flowers is consistently above 30 degrees Celsius, it may cause the leaves to curl and scorch. Excessive watering can lead to root waterlogging, causing root rot, or poor ventilation, which makes the leaves prone to curling and scorching. If kept indoors, it is important to frequently open windows for ventilation. Water properly and pay attention to controlling the temperature environment.

What Does It Mean When Hydrangea Leaves Curl

Hydrangea flowers prefer to grow in warm environments and cannot tolerate high-temperature growing conditions. If the temperature is consistently above 30 degrees Celsius, it may cause the leaves to curl and scorch. If the curling and drying of hydrangea leaves is due to strong sunlight, the affected leaves should be cut off to help the plant recover quickly. After pruning, the hydrangea can be placed in a cool and well-ventilated environment, with moderate watering to aid in the plant's recovery. What disease causes hydrangea leaves to curl and fall? The symptoms of curling and falling leaves in hydrangea flowers may be due to high growth temperatures, high humidity in the air, and weak growth of the plant. In this case, the plant should be moved to a well-ventilated and sufficiently lit area. Then, dilute the fungicide carbendazim with water at a ratio of 500:1 and spray it directly on the entire plant. There's no need to prune the leaves before spraying the fungicide.

Reasons for Hydrangea Leaves Curling

Hydrangea requires moderate watering. Excessive watering can cause root waterlogging, leading to root rot and leaf curling and scorching. What causes newly grown hydrangea leaves to curl? Hydrangea cannot grow long-term in a non-ventilated environment; excessive heat can cause leaves to curl and scorch.

Methods to Treat Curling and Withering of Hydrangea Leaves

1. Place the hydrangea in a well-ventilated area. If kept in a too enclosed corner, the leaves are prone to curling and scorching. If kept indoors, make sure to open the windows frequently for ventilation. 2. Pay attention to watering and fertilizing: Proper watering is crucial for good growth of hydrangea. Excessive or insufficient watering can affect the plant's growth. For example, excessive watering can lead to root rot and curled leaves, which require removing the potting soil to dry before repotting. 3. Fertilizing should also be moderate. Too much or too concentrated fertilizer can damage the roots. Apply fertilizer sparingly and frequently, about once every two weeks. 4. Pay attention to sunlight: Although hydrangea requires plenty of sunlight, excessive sunlight in summer requires some shading, otherwise, the leaves may curl due to excessive water loss. When the temperature exceeds 30 degrees Celsius, place it in a cooler, shady area and spray water to moisturize and cool. Keep the temperature above 5 degrees Celsius in winter. 5. Pay attention to pests: Avoid excessive humidity, which can lead to pest infestations. After watering, place the plant in a well-ventilated area. Use pesticides to treat any pest problems. How to Deal with Curling and Yellowing Hydrangea Leaves Although hydrangea flowers enjoy fertilization, using too much or too concentrated fertilizer can cause root burn and leaf yellowing. Solution: Depending on the severity of the root burn, different rescue methods should be chosen. If the burn is not severe, water more frequently and stop fertilizing. If the burn is severe, cut strong branches for propagation. How to Deal with Pests on Curling Hydrangea Leaves Hydrangea has a strong adaptability and rarely gets diseases or pests, but if not properly cared for, aphids may appear, harming the tender leaves and stems. When aphids are found, they can be washed off with water. If there are too many aphids, spray with a 1200-fold dilution of dichlorvos or use tobacco water: Boil 50 grams of tobacco in 5 liters of water.

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