Troubleshooting
Pumila Pampas Grass problems — and how to fix them
Pumila Pampas Grass (Cortaderia selloana 'Pumila') 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.
Crown rot
Caused by waterlogged soil in winter; ensure excellent drainage and cut back foliage in early spring before wet season.
Lack of plumes
Usually caused by insufficient sun or planting a female cultivar in too much shade; site in full sun.
Invasive self-seeding
'Pumila' is less vigorous than the species but can still self-seed; deadhead or use sterile cultivars to prevent spread.
Leaf scorch in drought
Older leaves may brown at the tips in extreme drought; this is cosmetic and the plant recovers with rain.
Physical hazards
Razor-sharp leaf margins pose a cut risk; wear thick gloves and long sleeves when handling.
Prevent pumila pampas grass problems before they start
Most pumila pampas grass issues are care-mismatch, not bad luck. Dial in the basics:
Pumila Pampas Grass problems — FAQ
Why is my pumila pampas grass crown rot?
Caused by waterlogged soil in winter; ensure excellent drainage and cut back foliage in early spring before wet season.
Why is my pumila pampas grass lack of plumes?
Usually caused by insufficient sun or planting a female cultivar in too much shade; site in full sun.
Why is my pumila pampas grass invasive self-seeding?
'Pumila' is less vigorous than the species but can still self-seed; deadhead or use sterile cultivars to prevent spread.
Why is my pumila pampas grass leaf scorch in drought?
Older leaves may brown at the tips in extreme drought; this is cosmetic and the plant recovers with rain.
Why is my pumila pampas grass physical hazards?
Razor-sharp leaf margins pose a cut risk; wear thick gloves and long sleeves when handling.