Troubleshooting
Threeleaf Arrowhead problems — and how to fix them
Threeleaf Arrowhead (Sagittaria trifolia) 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.
Duck and waterfowl foraging
Waterfowl readily dig up and consume corms and young tubers; protect establishing plants with wire mesh guards beneath the surface planting basket until rhizomes are well anchored.
Rust fungus (Uromyces sagittariae)
Orange-brown pustules appear on leaf undersides in wet, warm conditions; remove and dispose of affected leaves, improve air circulation, and avoid overhead watering if growing in a bog bed context.
Prevent threeleaf arrowhead problems before they start
Most threeleaf arrowhead issues are care-mismatch, not bad luck. Dial in the basics:
Threeleaf Arrowhead problems — FAQ
Why is my threeleaf arrowhead duck and waterfowl foraging?
Waterfowl readily dig up and consume corms and young tubers; protect establishing plants with wire mesh guards beneath the surface planting basket until rhizomes are well anchored.
Why is my threeleaf arrowhead rust fungus (uromyces sagittariae)?
Orange-brown pustules appear on leaf undersides in wet, warm conditions; remove and dispose of affected leaves, improve air circulation, and avoid overhead watering if growing in a bog bed context.