Troubleshooting
Roundleaf Pickerelweed problems — and how to fix them
Roundleaf Pickerelweed (Pontederia rotundifolia) 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.
Invasive spread in warm climates
Classified as invasive in Florida and other warm states; grow in contained baskets in areas where it could escape into waterways, and deadhead flower spikes before seeds mature.
Aphids on flower spikes
Dense aphid colonies occasionally colonise emerging flower spikes, distorting blooms; blast off with a strong water jet directed away from the pond to avoid contaminating the water with dead insects.
Prevent roundleaf pickerelweed problems before they start
Most roundleaf pickerelweed issues are care-mismatch, not bad luck. Dial in the basics:
Roundleaf Pickerelweed problems — FAQ
Why is my roundleaf pickerelweed invasive spread in warm climates?
Classified as invasive in Florida and other warm states; grow in contained baskets in areas where it could escape into waterways, and deadhead flower spikes before seeds mature.
Why is my roundleaf pickerelweed aphids on flower spikes?
Dense aphid colonies occasionally colonise emerging flower spikes, distorting blooms; blast off with a strong water jet directed away from the pond to avoid contaminating the water with dead insects.