Climbing hydrangeas are considered robust, frugal and easy to care for. But even these fast-growing plants can get diseases. You can find out what these are here.
What diseases can climbing hydrangeas get?
Climbing hydrangeas can be affected by leaf spot, powdery mildew, chlorosis and pests such as aphids, nematodes and spider mites. Unfavorable growing conditions such as incorrect location, calcareous irrigation water or waterlogging can promote diseases. Affected plant parts should be removed and treated.
What diseases do climbing hydrangeas get?
Climbing hydrangeas are sometimes affected byleaf spot disease, which is caused by different types of pathogens. It can be recognized by brown spots on the leaves. Mildew can also occur. Chloroses(yellow leaves) occur on climbing hydrangeas due to irrigation water that contains too much lime. Pests such as aphids, nematodes and spider mites are possible even on these robust plants. A climbing hydrangea that doesn't want to bloom can indicate such diseases and pests.
Why do climbing hydrangeas get sick?
When the robust climbing plants become ill, it is always because they are weakened by unfavorable growing conditions. Alocationthat is too shady or too sunny,watering waterthat is too calcareous,waterlogging or dryness lead to this the plant can no longer defend itself against pathogens.
What symptoms does powdery mildew cause on climbing hydrangeas?
When infected with the fungal disease “powdery mildew”,gray,moldy,, forming on the leaves of the climbing hydrangea Plaques The wind spreads the fungal spores quickly and the disease can spread rapidly. The only thing that helps here is cutting off and completely removing all affected leaves and shoots. If you cannot control the disease by cutting away the diseased leaves, combat the mildew with a biological fungicide. Other hydrangeas in the garden can also get powdery mildew.
Tip
How do I treat leaf spot and chlorosis on climbing hydrangeas?
The leaf spot disease of Hydrangea petiolaris cannot be cured with home remedies; only thoroughcutting away of all affected plant sections can help. You must dispose of the diseased plant material with household waste or burn it (if it is permitted in your area). If your climbing hydrangea is suffering from chlorosis, you should only water the plants with lime-free water. The newly sprouting leaves will then look normal again.
