Troubleshooting
narrow small-reed problems — and how to fix them
narrow small-reed (Calamagrostis stricta) 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.
Drought intolerance
This wetland grass cannot tolerate dry soils; browning and die-back occur quickly if the root zone dries out — maintain permanently moist to wet conditions.
Rust fungus
Rust pustules can appear in humid, dense stands; remove affected stems and improve airflow where possible in denser plantings.
Loss in warm climates
Calamagrostis stricta is adapted to cool, boreal, and temperate climates and struggles in hot, humid summers in USDA zones 8+; site in the coolest, wettest spot available.
Prevent narrow small-reed problems before they start
Most narrow small-reed issues are care-mismatch, not bad luck. Dial in the basics:
Looking for narrow small-reed in general rather than its problems? Read the full narrow small-reed care guide — light, water, soil and feeding.
narrow small-reed problems — FAQ
Why is my narrow small-reed drought intolerance?
This wetland grass cannot tolerate dry soils; browning and die-back occur quickly if the root zone dries out — maintain permanently moist to wet conditions.
Why is my narrow small-reed rust fungus?
Rust pustules can appear in humid, dense stands; remove affected stems and improve airflow where possible in denser plantings.
Why is my narrow small-reed loss in warm climates?
Calamagrostis stricta is adapted to cool, boreal, and temperate climates and struggles in hot, humid summers in USDA zones 8+; site in the coolest, wettest spot available.