Stella d'Oro Daylilies Yellowing After Division? Check for Rust and Slugs

Two Likely Culprits

1. Daylily Rust (Puccinia hemerocallidis)

• Yellow-orange pustules on leaf undersides.
• Causes premature yellowing and reduced bloom.
• See AHS Rust Guide for photos and management.

2. Slugs/Snails

• Feed at night near crown, causing yellowing and death.
• Look for slime trails; bait with iron phosphate.

Post-Division Care

• Ensure divisions have adequate roots.
• Water consistently; mulch to retain moisture.
• Avoid high-nitrogen fertilizer.

Rust spreads quickly in humid conditions—remove infected leaves promptly.