Troubleshooting
Blushing Arisaema problems — and how to fix them
Blushing Arisaema (Arisaema erubescens) 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.
Corm rot in wet winters
Poorly drained soil combined with winter moisture is the leading cause of loss. Plant in raised beds or containers with excellent drainage, and cover with a thick dry mulch in autumn. In very wet climates, lift corms and store frost-free in dry compost.
Failure to flower
Young or undersized corms often produce only leaves in the first season. Corms need to reach a diameter of roughly 3–4 cm before producing a spathe. Feed well through summer and allow the corm to bulk up over 1–2 seasons.
Slug and snail damage
Emerging shoots in spring are particularly vulnerable to slug damage, which can destroy the single growing point. Apply slug controls (wool pellets, copper tape, or approved baits) around emerging growth in early spring.
Prevent blushing arisaema problems before they start
Most blushing arisaema issues are care-mismatch, not bad luck. Dial in the basics:
Blushing Arisaema problems — FAQ
Why is my blushing arisaema corm rot in wet winters?
Poorly drained soil combined with winter moisture is the leading cause of loss. Plant in raised beds or containers with excellent drainage, and cover with a thick dry mulch in autumn. In very wet climates, lift corms and store frost-free in dry compost.
Why is my blushing arisaema failure to flower?
Young or undersized corms often produce only leaves in the first season. Corms need to reach a diameter of roughly 3–4 cm before producing a spathe. Feed well through summer and allow the corm to bulk up over 1–2 seasons.
Why is my blushing arisaema slug and snail damage?
Emerging shoots in spring are particularly vulnerable to slug damage, which can destroy the single growing point. Apply slug controls (wool pellets, copper tape, or approved baits) around emerging growth in early spring.