Troubleshooting
Northwind Switch Grass problems — and how to fix them
Northwind Switch Grass (Panicum virgatum 'Northwind') 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.
Opening in deep shade
Even this storm-proof cultivar loosens its form in too much shade; site in full sun to preserve the tight vertical column.
No fertiliser needed
Over-feeding with nitrogen weakens the stems; this grass performs best in lean soil with no supplemental feeding.
Self-seeding
May produce occasional seedlings in ideal conditions; cut back seed heads in late winter to prevent unwanted volunteers.
Rust in humid sites
Rust fungus can spot the blades in humid, crowded plantings; ensure good spacing and airflow and divide congested clumps.
Prevent northwind switch grass problems before they start
Most northwind switch grass issues are care-mismatch, not bad luck. Dial in the basics:
Looking for northwind switch grass in general rather than its problems? Read the full northwind switch grass care guide — light, water, soil and feeding.
Northwind Switch Grass problems — FAQ
Why is my northwind switch grass opening in deep shade?
Even this storm-proof cultivar loosens its form in too much shade; site in full sun to preserve the tight vertical column.
Why is my northwind switch grass no fertiliser needed?
Over-feeding with nitrogen weakens the stems; this grass performs best in lean soil with no supplemental feeding.
Why is my northwind switch grass self-seeding?
May produce occasional seedlings in ideal conditions; cut back seed heads in late winter to prevent unwanted volunteers.
Why is my northwind switch grass rust in humid sites?
Rust fungus can spot the blades in humid, crowded plantings; ensure good spacing and airflow and divide congested clumps.