Troubleshooting
Giant Spider Lily problems — and how to fix them
Giant Spider Lily (Crinum asiaticum) 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.
Bulb rot
Caused by overwatering or poorly draining soil; ensure the neck of the bulb sits at or just above the soil surface and reduce watering in cool weather.
Mealybugs
White cottony clusters appear in leaf axils; wipe off with a damp cloth and treat with insecticidal soap or neem oil.
Red spider mite
Fine webbing and stippled leaves in dry conditions; raise humidity and apply a miticide or neem oil spray.
Failure to flower
Often caused by too much shade, pot-boundness too extreme (though mild crowding encourages bloom), or insufficient winter rest; ensure adequate light and a drier, cooler rest period.
Leaf scorch
Brown leaf tips from low humidity, salt build-up, or cold draughts; flush the soil periodically and keep away from heating vents.
Prevent giant spider lily problems before they start
Most giant spider lily issues are care-mismatch, not bad luck. Dial in the basics:
Giant Spider Lily problems — FAQ
Why is my giant spider lily bulb rot?
Caused by overwatering or poorly draining soil; ensure the neck of the bulb sits at or just above the soil surface and reduce watering in cool weather.
Why is my giant spider lily mealybugs?
White cottony clusters appear in leaf axils; wipe off with a damp cloth and treat with insecticidal soap or neem oil.
Why is my giant spider lily red spider mite?
Fine webbing and stippled leaves in dry conditions; raise humidity and apply a miticide or neem oil spray.
Why is my giant spider lily failure to flower?
Often caused by too much shade, pot-boundness too extreme (though mild crowding encourages bloom), or insufficient winter rest; ensure adequate light and a drier, cooler rest period.
Why is my giant spider lily leaf scorch?
Brown leaf tips from low humidity, salt build-up, or cold draughts; flush the soil periodically and keep away from heating vents.