Troubleshooting
Daylily 'Purple d'Oro' problems — and how to fix them
Daylily 'Purple d'Oro' (Hemerocallis 'Purple d'Oro') 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.
Reduced rebloom in shade
The most common issue; ensure at least 6 hours of direct sun or rebloom cycles will be sparse.
Aphids
Attack young growth and flower scapes; treat with insecticidal soap or horticultural oil at first sign.
Leaf streak
Fungal streaking on foliage; remove affected material and improve air circulation between plants.
Container drying out
Small containers dry quickly in summer; check soil moisture daily in hot weather and water as needed.
Rust
Fungal orange pustules on leaves in humid conditions; apply an appropriate fungicide and remove infected foliage.
Prevent daylily 'purple d'oro' problems before they start
Most daylily 'purple d'oro' issues are care-mismatch, not bad luck. Dial in the basics:
Daylily 'Purple d'Oro' problems — FAQ
Why is my daylily 'purple d'oro' reduced rebloom in shade?
The most common issue; ensure at least 6 hours of direct sun or rebloom cycles will be sparse.
Why is my daylily 'purple d'oro' aphids?
Attack young growth and flower scapes; treat with insecticidal soap or horticultural oil at first sign.
Why is my daylily 'purple d'oro' leaf streak?
Fungal streaking on foliage; remove affected material and improve air circulation between plants.
Why is my daylily 'purple d'oro' container drying out?
Small containers dry quickly in summer; check soil moisture daily in hot weather and water as needed.
Why is my daylily 'purple d'oro' rust?
Fungal orange pustules on leaves in humid conditions; apply an appropriate fungicide and remove infected foliage.