Troubleshooting
Sheep's Fescue problems — and how to fix them
Sheep's Fescue (Festuca ovina) 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.
Browning or dying in the centre of tussocks
Caused by overwatering, waterlogged soils, or a naturally-aged clump. Divide the tussock and replant the healthy outer sections; ensure drainage.
Takeover by coarser grasses in borders
More vigorous grasses can overwhelm fescue. Edge tussocks regularly; avoid planting adjacent to thuggish spreaders.
Rust disease
Orange pustules on blades in humid seasons. Generally cosmetic on established plants; improve air circulation. Very rarely needs treatment.
Slug damage on seedlings
Young transplants and seedlings are vulnerable. Protect with grit mulch; established tussocks are largely unaffected.
Loss of blue-grey colour in shade
The characteristic blue colouring is most intense in full sun. In shade, foliage reverts to standard green.
Prevent sheep's fescue problems before they start
Most sheep's fescue issues are care-mismatch, not bad luck. Dial in the basics:
Sheep's Fescue problems — FAQ
Why is my sheep's fescue browning or dying in the centre of tussocks?
Caused by overwatering, waterlogged soils, or a naturally-aged clump. Divide the tussock and replant the healthy outer sections; ensure drainage.
Why is my sheep's fescue takeover by coarser grasses in borders?
More vigorous grasses can overwhelm fescue. Edge tussocks regularly; avoid planting adjacent to thuggish spreaders.
Why is my sheep's fescue rust disease?
Orange pustules on blades in humid seasons. Generally cosmetic on established plants; improve air circulation. Very rarely needs treatment.
Why is my sheep's fescue slug damage on seedlings?
Young transplants and seedlings are vulnerable. Protect with grit mulch; established tussocks are largely unaffected.
Why is my sheep's fescue loss of blue-grey colour in shade?
The characteristic blue colouring is most intense in full sun. In shade, foliage reverts to standard green.