Festuca glauca ''Boulder Blue'
Common Name(s):
Blue fescue
Grey fescue
Synonym:
Festuca ovina var. glauca
Blue mountain grass
Flower:
Brown
Blooms :
Jul
to:
Aug
Flowers light green, small, in compact inflourescences
Botanical Description
Fragrant?
NO
Family:
Poaceae
Grass
Foliage:
Steely blue
Leaves linear up to .75' long
Fall Color?
YES
Foliage steely blue color remains into fall
Semi-Evergreen
Photo by:
Heading 6
Retains color thru winter
Oregon Native?
NO
West State Native?
NO
Origins:
Europe
Site Selection
Minimum USDA Hardiness Zone:
4
Water Needs:
L
Sun Needs:
Full Sun
Deer Resistant?
NO
Firewise?
YES
Height:
.5-.75'
Spread:
.5-.75'
Growth Rate:
Medium
Native Habitat:
Damp grassland, rocky slopes
Soil:
Average well-drained soils
Care Recommendations
Maintenance Level:
Medium
Fertilizer:
Does not require fertilizer
Mulch:
Thin layer of organic mulch
Center tends to die out so divide every 2-3 years
Long Term:
Winter:
Ensure good drainage, can rake out old foliage in late winter
Spring:
Cut back to 3-4" before new growth appears
Summer:
Water deeply only when dry, full sun, well-drained soils
Fall:
Cut back inflorescences to prevent self seeding and for cleaner sppearance
General Care Comments:
Thrives in full sun, sensitive to overwatering, needs excellent soil drainage, can rake way dead foliage in spring, divide if needed
Common Problems
Self seeds and can become weedy
Diseases:
Powdery mildew, root rot, rust
Insects:
Aphids, spider mites,
Environmental Problems:
Does not tolerate high heat and humidity, leaves may brown
Pests:
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