Hydrangea leaf edges become dry and black
For many girls, the introduction to the phenomenon of hydrangea leaf edges drying and blackening and the center of the leaves turning black, the editor will introduce next.
The edges of hydrangea leaves drying and blackening may be due to excessive watering, leading to root rot. Excessive sunlight, high temperatures, and improper fertilization can also cause the edges of the leaves to dry out, the plant to dehydrate, and sunburn, at which time it is necessary to promptly cool down the plant, place it in a cool and well-ventilated area for maintenance, and reduce the amount of fertilizer in the summer.
Reasons for the edges of leaves drying and blackening1. Excessive watering
Many people who cultivate hydrangeas experience the phenomenon of the edges of the leaves drying and blackening, one of the reasons for which may be excessive watering, preventing the roots from absorbing water, leading to root rot, the leaves gradually withering, and the edges appearing dry and black. Immediate remedial action is required, such as loosening the soil around the hydrangea to speed up water evaporation.
2. Excessive sunlight
Hydrangeas prefer a semi-shaded growing environment. If hydrangeas are exposed to strong sunlight for an extended period in the summer, it can also cause the edges of the leaves to dry and blacken, or even cause the plant to wither. In such cases, it is necessary to shade the hydrangea and place it in a well-ventilated area for maintenance. When caring for hydrangeas in the summer, they should be placed in a location that receives scattered sunlight.
3. Unsuitable temperature
Hydrangeas prefer a warm environment, with an optimal growth temperature of 18-28 degrees Celsius. High temperatures can cause the plant to dry out, suffer sunburn, and the leaves to curl. Low temperatures can cause the leaves to freeze, leading to dry and black edges on the leaves. In the winter, they need to be placed indoors for maintenance, and during the high summer temperatures, cooling measures should be taken.
4. Improper fertilization
Hydrangeas enjoy fertilizer. Insufficient fertilization and nutrition can lead to poor growth and yellowing leaves. Excessive fertilization can burn the roots, leading to root rot and leaves drying and blackening. Proper fertilization is required when cultivating hydrangeas, with a decomposed farm manure applied once every two weeks during the growing season, and fertilization reduced during hot weather.
The above is the complete content regarding the center of hydrangea leaves turning black and the edges of the leaves drying and blackening, for your comprehensive understanding and reference!