Blue Fescue

Festuca glauca

Vill. Species

Festuca glauca
Jon Sullivan via iNaturalist — CC BY 4.0
Festuca glauca photograph 1 Festuca glauca photograph 2 Festuca glauca photograph 3 Festuca glauca photograph 4
Botanical name
Festuca glauca
Also known as
Blue Fescue, Gray Fescue
Family
Poaceae
Genus
Festuca
Flowering period
June to July
Height
20–40 cm
Spread
25–30 cm
Hardiness
Fully hardy
Reference
World Flora Online

How to grow Blue Fescue

Sunlight
Full sun — colour fades badly in shade
Watering
Low; drought tolerant and intolerant of wet soil
Soil
Poor to moderately fertile, sharply drained; grit on heavy ground
Soil pH
Acid to alkaline

Planting

Plant in spring into free-draining soil in full sun. It suits gravel gardens, raised beds, containers and the front edge of a dry sunny border. Rich moist soil produces floppy green growth rather than the tight blue tuft you are after.

Pruning

Evergreen, so do not cut it to the ground. Comb dead material out by hand in early spring and remove the flowering stems once they brown, or cut them off early if you prefer the neat foliage mound.

Propagation

Divide in spring every two or three years — this is maintenance as much as propagation. Seed-raised plants vary considerably in how blue they are.

Pests and diseases

Few problems. Clumps die out in the middle after a few years, and plants rot over winter on heavy wet soil.

Notes

Individual plants are short-lived and lose their colour and shape after about three years. Plan to lift, split and replant regularly, discarding the tired brown centre and replanting only the strong outer sections.

This guidance was researched and written by GardenDecoded — see our editorial policy for how guides are checked and reviewed.

Other names for this plant

These names have all been used for Festuca glauca but are no longer the accepted name. You may still meet them on old labels, in books, or in nursery catalogues.

Festuca calcarea Festuca calcarea Festuca duriuscula var. glauca Festuca eragrostoides Festuca strictifolia Festuca veneris

Others in Festuca

Festuca × belensis
Festuca × fleischeri
Festuca × flischeri
Festuca × gonzalez-ledesmae
Festuca × hackelii
Festuca × jierru
Festuca × kolesnikovii
Festuca × miscella

GardenDecoded is an educational gardening reference. Botanical data comes from World Flora Online and GBIF; growing guidance is our own. Always check a plant's toxicity and local invasiveness status before planting, and never eat or apply a plant based on this site alone.