potted_plant
Rose care requirements
water
Deeply 1–2 times per week at the base. Never overhead.
soil
Rich, fertile, well-draining soil. pH 6.0–6.5.
light
Full sun — 6+ hours.
symptoms
Symptoms to look for in Rose
Purple to brown angular blotches on the upper leaf surface with a greyish, downy growth visible underneath in humid conditions, often causing rapid leaf drop.
help
Common causes in Rose
Downy mildew thrives in cool, humid conditions with poor airflow — roses grown in crowded beds or areas with high humidity and morning dew are most at risk.
healing
How to treat downy mildew in Rose
Remove and destroy affected leaves promptly, improve air circulation around the plant, and apply a fungicide labelled for downy mildew if the infection is spreading rapidly.
shield
Preventing downy mildew in Rose
Space roses well for airflow, water at the soil level in the morning so foliage dries quickly, and avoid overhead irrigation.