Troubleshooting
Mayapple problems — and how to fix them
Mayapple (Podophyllum peltatum) 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.
Early summer dormancy
Mayapple routinely goes dormant by midsummer, with foliage yellowing and collapsing. This is completely normal and not a disease. Mark planting areas so the dormant rhizomes are not accidentally disturbed. Gap-fill with later-emerging perennials.
Rust disease
Yellow-orange rust pustules (Phytophthora or Puccinia species) can disfigure foliage. Remove and dispose of infected leaves. Improve air circulation by thinning dense colonies. Avoid overhead watering. Rust rarely kills established plants but reduces vigor.
Slug and snail damage
Large succulent leaves are attractive to slugs, which chew holes in the foliage in spring. Apply iron phosphate pellets around emerging shoots early in the season. Hand-pick pests at night. Damage is mainly cosmetic as foliage is shed by summer.
Prevent mayapple problems before they start
Most mayapple issues are care-mismatch, not bad luck. Dial in the basics:
Mayapple problems — FAQ
Why is my mayapple early summer dormancy?
Mayapple routinely goes dormant by midsummer, with foliage yellowing and collapsing. This is completely normal and not a disease. Mark planting areas so the dormant rhizomes are not accidentally disturbed. Gap-fill with later-emerging perennials.
Why is my mayapple rust disease?
Yellow-orange rust pustules (Phytophthora or Puccinia species) can disfigure foliage. Remove and dispose of infected leaves. Improve air circulation by thinning dense colonies. Avoid overhead watering. Rust rarely kills established plants but reduces vigor.
Why is my mayapple slug and snail damage?
Large succulent leaves are attractive to slugs, which chew holes in the foliage in spring. Apply iron phosphate pellets around emerging shoots early in the season. Hand-pick pests at night. Damage is mainly cosmetic as foliage is shed by summer.