Troubleshooting
Evergreen Amaryllis problems — and how to fix them
Evergreen Amaryllis (Hippeastrum striatum) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Red blotch (Stagonospora curtisii)
Red lesions on leaves and bulb neck. Purchase disease-free stock and use fresh compost at repotting. Remove affected leaves and treat with a copper-based fungicide.
Infrequent flowering
Occurs when the plant does not experience sufficient temperature variation or bright light to trigger bud initiation. A cooler, brighter winter period (13–15°C) often helps.
Mealybugs
Cottony masses in leaf axils and at the bulb neck. Treat with isopropyl alcohol on a cotton swab or apply neem oil spray.
Overwatering and root rot
The most common problem for an evergreen specimen kept in low-light indoor conditions in winter. Reduce watering frequency and improve light.
Spider mites
Fine stippling and webbing on leaves in dry indoor air. Improve humidity slightly and treat with insecticidal soap or neem oil.
Prevent evergreen amaryllis problems before they start
Most evergreen amaryllis issues are care-mismatch, not bad luck. Dial in the basics:
Evergreen Amaryllis problems — FAQ
Why is my evergreen amaryllis red blotch (stagonospora curtisii)?
Red lesions on leaves and bulb neck. Purchase disease-free stock and use fresh compost at repotting. Remove affected leaves and treat with a copper-based fungicide.
Why is my evergreen amaryllis infrequent flowering?
Occurs when the plant does not experience sufficient temperature variation or bright light to trigger bud initiation. A cooler, brighter winter period (13–15°C) often helps.
Why is my evergreen amaryllis mealybugs?
Cottony masses in leaf axils and at the bulb neck. Treat with isopropyl alcohol on a cotton swab or apply neem oil spray.
Why is my evergreen amaryllis overwatering and root rot?
The most common problem for an evergreen specimen kept in low-light indoor conditions in winter. Reduce watering frequency and improve light.
Why is my evergreen amaryllis spider mites?
Fine stippling and webbing on leaves in dry indoor air. Improve humidity slightly and treat with insecticidal soap or neem oil.