Larger evergreen ornamental grass than blue fescue, forming rounded fountains of silver-blue narrow foliage topped by airy tan oat-like flower panicles in early summer.
Hardiness ratings
| System | Rating | Temperature range | How to read it |
|---|---|---|---|
| USDA hardiness zone | Zone 4–8 | −34.4 °C to −6.7 °C | Plant tolerates down to this zone |
| RHS hardiness rating | H6 | −20 °C to −15 °C | Plant needs at least this level of cold tolerance |
| Canadian plant hardiness zone | Zone 4–8 | −29 °C to −1 °C | Plant tolerates down to this zone |
| Australian (ANBG) zone | Zone 2–5 | −10 °C to 10 °C | Plant tolerates down to this zone |
Growing notes
- Plant as a specimen in gravel beds, mixed borders, and as foundation planting — the larger structural blue grass for mid-border use
- Comb out dead foliage in spring rather than cutting back
- Demands sharp drainage — resents winter wet, which is the main cause of plant failure
- Drought tolerant once established
Categories
Related plants
Cross-check Blue oat grass against your zones