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Leaf Spot in Climbing Hydrangea

How to identify and treat leaf spot in Climbing Hydrangea.

potted_plant

Climbing Hydrangea care requirements

water
Keep soil evenly moist during growing season. Water deeply once or twice weekly; reduce watering in winter when dormant.
soil
Rich, humus-dense, well-draining soil. Amend heavily with compost or leaf mold at planting.
light
Partial to full shade; tolerates morning sun but prefers afternoon shade, especially in hot climates. Too much sun reduces flowering.
symptoms

Symptoms to look for in Climbing Hydrangea

  • fiber_manual_recordCircular brown or black spots
  • fiber_manual_recordYellow halos around spots
  • fiber_manual_recordPremature defoliation
help

Common causes in Climbing Hydrangea

Multiple fungal and bacterial pathogens. Favoured by wet foliage and warm temperatures.

healing

How to treat leaf spot in Climbing Hydrangea

Remove affected leaves. Apply appropriate fungicide or bactericide.

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Preventing leaf spot in Climbing Hydrangea

Water at soil level. Improve air circulation. Practise crop rotation.