Troubleshooting
Daylily 'Siloam Virginia Henson' problems — and how to fix them
Daylily 'Siloam Virginia Henson' (Hemerocallis 'Siloam Virginia Henson') 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.
Aphids
Common on buds and soft growth in spring; treat with insecticidal soap or encourage natural predators such as ladybirds.
Daylily rust
Fungal disease producing orange spore masses on foliage; promptly remove and destroy affected leaves and consider a registered fungicide.
Thrips
Cause streaking and distortion of petals; apply neem oil or spinosad-based sprays early in the season.
Botrytis (grey mould)
Affects buds and spent blooms in cool, wet conditions; remove spent flowers promptly and ensure good airflow.
Crown rot
Caused by overwatering or poor drainage; lift affected crowns, trim rotted tissue and replant in improved soil.
Prevent daylily 'siloam virginia henson' problems before they start
Most daylily 'siloam virginia henson' issues are care-mismatch, not bad luck. Dial in the basics:
Daylily 'Siloam Virginia Henson' problems — FAQ
Why is my daylily 'siloam virginia henson' aphids?
Common on buds and soft growth in spring; treat with insecticidal soap or encourage natural predators such as ladybirds.
Why is my daylily 'siloam virginia henson' daylily rust?
Fungal disease producing orange spore masses on foliage; promptly remove and destroy affected leaves and consider a registered fungicide.
Why is my daylily 'siloam virginia henson' thrips?
Cause streaking and distortion of petals; apply neem oil or spinosad-based sprays early in the season.
Why is my daylily 'siloam virginia henson' botrytis (grey mould)?
Affects buds and spent blooms in cool, wet conditions; remove spent flowers promptly and ensure good airflow.
Why is my daylily 'siloam virginia henson' crown rot?
Caused by overwatering or poor drainage; lift affected crowns, trim rotted tissue and replant in improved soil.