potted_plant
Sunflower care requirements
water
Moderately. Deep but infrequent once established.
soil
Well-draining soil. Tolerant of poor soil.
light
Full sun — absolutely essential.
symptoms
Symptoms to look for in Sunflower
White, powdery coating on leaves, typically appearing later in the season on lower, older leaves and spreading upward.
help
Common causes in Sunflower
Powdery mildew commonly affects sunflowers later in the season as plants mature and lower leaves are shaded by upper growth, creating the still, humid microclimate this fungus favours.
healing
How to treat powdery mildew in Sunflower
Remove heavily affected leaves, and apply a fungicide if the infection is spreading significantly, though late-season mildew often has limited impact on already-maturing plants.
shield
Preventing powdery mildew in Sunflower
Space plants well for airflow, and water at the soil level rather than overhead.