Troubleshooting
meadow fountain grass problems — and how to fix them
meadow fountain grass (Pennisetum incomptum) 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.
Rhizomatous spread
Can spread more aggressively than clump-forming species via short rhizomes, particularly in loose or sandy soils. Divide clumps every 3–4 years to keep in check, or plant within root barriers in smaller gardens.
Winter root rot
Although reasonably cold-hardy, plants are susceptible to crown rot in wet, cold winters. Ensure sharp drainage, especially in heavier clay soils; incorporate grit at planting and avoid mulching over the crown.
Sparse flowering in shade
Insufficient light results in weak, floppy stems and few flower spikes. Relocate plants to a sunnier position if flowering is disappointing; even a few hours of additional sun makes a significant difference.
Prevent meadow fountain grass problems before they start
Most meadow fountain grass issues are care-mismatch, not bad luck. Dial in the basics:
Looking for meadow fountain grass in general rather than its problems? Read the full meadow fountain grass care guide — light, water, soil and feeding.
meadow fountain grass problems — FAQ
Why is my meadow fountain grass rhizomatous spread?
Can spread more aggressively than clump-forming species via short rhizomes, particularly in loose or sandy soils. Divide clumps every 3–4 years to keep in check, or plant within root barriers in smaller gardens.
Why is my meadow fountain grass winter root rot?
Although reasonably cold-hardy, plants are susceptible to crown rot in wet, cold winters. Ensure sharp drainage, especially in heavier clay soils; incorporate grit at planting and avoid mulching over the crown.
Why is my meadow fountain grass sparse flowering in shade?
Insufficient light results in weak, floppy stems and few flower spikes. Relocate plants to a sunnier position if flowering is disappointing; even a few hours of additional sun makes a significant difference.