potted_plant
Cosmos care requirements
water
Drought-tolerant once established; water moderately and allow soil to dry between waterings
soil
Poor to moderately fertile, well-draining soil; overly rich soil encourages foliage over flowers
light
Full sun; requires 6+ hours of direct sunlight for optimal blooming
symptoms
Symptoms to look for in Cosmos
- fiber_manual_recordWhite powdery patches on leaves
- fiber_manual_recordDistorted new growth
- fiber_manual_recordPremature leaf drop
help
Common causes in Cosmos
Caused by various fungal species. Spreads in warm, dry conditions with high humidity nights.
healing
How to treat powdery mildew in Cosmos
Remove affected leaves. Apply neem oil, potassium bicarbonate, or sulphur-based fungicide. Improve air circulation.
shield
Preventing powdery mildew in Cosmos
Space plants for good airflow. Avoid overhead watering. Choose resistant varieties.