Troubleshooting
Daylily 'Catherine Woodbery' problems — and how to fix them
Daylily 'Catherine Woodbery' (Hemerocallis 'Catherine Woodbery') 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.
Colour fading in heat
The delicate lavender pigments bleach in intense midday sun above 35°C. Afternoon shade in the hottest months preserves colour; in cooler zones this is rarely an issue.
Daylily rust
Puccinia hemerocallidis can appear as orange leaf pustules. Remove affected foliage and treat with copper-based fungicide if the infection is widespread.
Thrips
Damage the soft-coloured petals causing unsightly silvery streaking. Apply spinosad spray in early morning before pollinators are active.
Slug damage
Slugs consume emerging foliage and flower buds. Use iron phosphate pellets or copper barriers around clumps in spring.
Reduced fragrance
Fragrance diminishes with overcrowded or stressed clumps. Divide every 3-4 years to maintain vigour and scent expression.
Prevent daylily 'catherine woodbery' problems before they start
Most daylily 'catherine woodbery' issues are care-mismatch, not bad luck. Dial in the basics:
Daylily 'Catherine Woodbery' problems — FAQ
Why is my daylily 'catherine woodbery' colour fading in heat?
The delicate lavender pigments bleach in intense midday sun above 35°C. Afternoon shade in the hottest months preserves colour; in cooler zones this is rarely an issue.
Why is my daylily 'catherine woodbery' daylily rust?
Puccinia hemerocallidis can appear as orange leaf pustules. Remove affected foliage and treat with copper-based fungicide if the infection is widespread.
Why is my daylily 'catherine woodbery' thrips?
Damage the soft-coloured petals causing unsightly silvery streaking. Apply spinosad spray in early morning before pollinators are active.
Why is my daylily 'catherine woodbery' slug damage?
Slugs consume emerging foliage and flower buds. Use iron phosphate pellets or copper barriers around clumps in spring.
Why is my daylily 'catherine woodbery' reduced fragrance?
Fragrance diminishes with overcrowded or stressed clumps. Divide every 3-4 years to maintain vigour and scent expression.