Common Causes of Hydrangea Leaf Deformities
Summary: Introduction to the common causes of hydrangea leaf deformities, which will be explained by the editor below.
Recently, many flower enthusiasts have encountered the phenomenon of their hydrangea leaves wrinkling and deforming. What could be the reason for this, and how should it be dealt with?
Common Causes of Hydrangea Leaf Deformities
If your hydrangea develops deformed new leaves in spring, it is likely due to one of the following two reasons.
1. - - Fertilizer Burn Leading to Deformed New Leaves - -
In March, when spring arrives, hydrangeas enter a period of rapid growth. The leaves grow quickly, and new branches shoot up. At this time, not only is an ample supply of fertilizer and water necessary, but if color adjustment is desired, blueing agents should also be used. After applying fertilizer and blueing agents, we may notice that the leaves of the hydrangea appear abnormal, slightly curled, wrinkled, and deformed. This is actually a sign of fertilizer burn.
At this point, we often see that the leaves of the hydrangea are lush and green, with only the new leaves at the top of the buds showing signs of wrinkling and deformation, indicating poor metabolism due to overfeeding.
This phenomenon can occur not only when we apply concentrated fertilizer to the roots but also when foliar fertilizers are applied in high concentrations. In severe cases, yellowing of the leaf tips and edges may also occur, indicating more serious fertilizer burn.
In spring, as hydrangeas grow quickly, high concentrations of fertilizer generally do not cause yellowing of leaves, but leaf deformation is common. In such cases, it is recommended to stop fertilizing for a while and allow the hydrangea to grow and metabolize until the new leaves are normal before resuming fertilization.
If your hydrangea is being treated with aluminum sulfate for color adjustment, it is advisable to separate the timing of top dressing and aluminum sulfate applications, or to supplement through foliar spraying.
2. - - Pesticide Damage Leading to Deformed New Leaves - -
Besides fertilization, high concentrations of pesticides can also cause issues with new hydrangea leaves.
The leaves of hydrangeas in spring are very delicate, with relatively weak tolerance to fertilizers and pesticides. If we apply pesticides to roses and inadvertently spray the hydrangeas as well, the roses may show no signs of distress, but the hydrangeas may develop wrinkled and deformed leaves due to pesticide damage.
Therefore, when managing the plants, it is important to be cautious. If multiple fertilizers or pesticides are mixed together, it is best not to spray them on the hydrangeas to avoid fertilizer or pesticide damage.
Once pesticide damage occurs, it cannot be reversed and the hydrangea must grow and metabolize it on its own. While pesticide damage does not cause the hydrangea to wilt, it can affect its normal growth and may even lead to blind buds in severe cases, so it is best to avoid it if possible.
The above sharing of common causes of hydrangea leaf deformities in green plants and flowers may provide you with some help in your daily life!