Troubleshooting
Arrow Arum problems — and how to fix them
Arrow Arum (Peltandra virginica) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Aphid Colonies on New Growth
Aphids frequently colonise the unfurling young leaves and flower spathes in spring; remove by hand or apply insecticidal soap, avoiding contamination of pond water with chemical treatments.
Rhizome Rot in Stagnant Water
In poorly circulated, overly warm water during summer, rhizomes can succumb to bacterial or fungal rot; improve water movement and thin congested clumps every 2–3 years to restore vigour.
Prevent arrow arum problems before they start
Most arrow arum issues are care-mismatch, not bad luck. Dial in the basics:
Arrow Arum problems — FAQ
Why is my arrow arum aphid colonies on new growth?
Aphids frequently colonise the unfurling young leaves and flower spathes in spring; remove by hand or apply insecticidal soap, avoiding contamination of pond water with chemical treatments.
Why is my arrow arum rhizome rot in stagnant water?
In poorly circulated, overly warm water during summer, rhizomes can succumb to bacterial or fungal rot; improve water movement and thin congested clumps every 2–3 years to restore vigour.