WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Hydrangea: Failure to bloom categories: Hydrangea Hydrangea Diseases Ornamentals Shrubs revision date: 2022-12-02 12:00 Biology Improper pruning is the most common reason hydrangeas fail to bloom. Both bigleaf (Hydrangea macrophylla) and oakleaf (H. […]
WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Hydrangea: Fungal leaf spots categories: Hydrangea Hydrangea Diseases Ornamentals Shrubs revision date: 2022-12-02 12:00 Mycosphaerella leaf spot, www.forestryimages.orgPhoto by: B.J. Jacobsen, NCSU Biology Several fungal diseases cause spotting of leaves on hydrangeas. Symptoms […]
WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Hydrangea: Hail damage categories: Hydrangea Hydrangea Diseases Ornamentals Shrubs revision date: 2022-12-02 12:00 Hail damage to hydrangea leafPhoto by: J. Glass Biology Damage to plants depends on size of the hailstones and intensity […]
WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Hydrangea: Herbicide damage categories: Hydrangea Hydrangea Diseases Ornamentals Shrubs revision date: 2022-12-02 12:00 Biology Symptoms of herbicide damage may be confused with damage from insects, disease, or cultural problems. Specific injury symptoms vary […]
WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Hydrangea: Leaf scorch categories: Hydrangea Hydrangea Diseases Ornamentals Shrubs revision date: 2022-12-02 12:00 Leaf scorch on hydrangeaPhoto by: J. Glass Biology Leaf scorch on hydrangea is a common physiological problem. Typical symptoms include […]
WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Hydrangea: Marginal leaf necrosis categories: Hydrangea Hydrangea Diseases Ornamentals Shrubs revision date: 2022-12-02 12:00 drought damage to H. macrophyllaPhoto by: R. Maleike Biology Browning and dieback of leaf margins and tips can be […]
WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Hydrangea: Powdery mildew categories: Hydrangea Hydrangea Diseases Ornamentals Shrubs revision date: 2024-06-05 10:24 Powdery mildew on hydrangeaPhoto by: Dept. of Plant Pathology, NCSU Biology Powdery mildew is a fungal disease affecting leaves, young […]