Troubleshooting
Dutchman's pipe problems — and how to fix them
Dutchman's pipe (Aristolochia macrophylla) 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.
Pipevine swallowtail larvae damage
The caterpillars of Battus philenor can rapidly defoliate a plant. In conservation gardens this is desirable; otherwise remove larvae by hand or use row netting.
Crown rot / root rot
Occurs in poorly drained or waterlogged soils. Ensure good drainage, avoid mulching right against the stem base, and do not plant in low-lying areas prone to standing water.
Sparse flowering
Flowers are produced in leaf axils and easily hidden by foliage. The vine is grown primarily for its leaves; excessive shade further reduces the already inconspicuous bloom. Ensure adequate light.
Prevent dutchman's pipe problems before they start
Most dutchman's pipe issues are care-mismatch, not bad luck. Dial in the basics:
Looking for dutchman's pipe in general rather than its problems? Read the full dutchman's pipe care guide — light, water, soil and feeding.
Dutchman's pipe problems — FAQ
Why is my dutchman's pipe pipevine swallowtail larvae damage?
The caterpillars of Battus philenor can rapidly defoliate a plant. In conservation gardens this is desirable; otherwise remove larvae by hand or use row netting.
Why is my dutchman's pipe crown rot / root rot?
Occurs in poorly drained or waterlogged soils. Ensure good drainage, avoid mulching right against the stem base, and do not plant in low-lying areas prone to standing water.
Why is my dutchman's pipe sparse flowering?
Flowers are produced in leaf axils and easily hidden by foliage. The vine is grown primarily for its leaves; excessive shade further reduces the already inconspicuous bloom. Ensure adequate light.