The illustrated growing guide
Blue Fescue
Festuca glauca
Family Poaceae
Est. zones 4-8
Steel-blue hedgehogs for edging and pots — intense color, tidy scale. Short-lived by design: plan on splitting every third spring and it's forever.
Full Sun
Low water
Moderate growth
Attracts butterflies
From the print shop
Growing blue fescue? Hang it.
Our Ornamental Grasses collection carries blue fescue — Festuca glauca, print Nº 11, “Blue Fescue.”
16 designsfrom $21.99white or black groundmatte poster, unframed
I
Overview
Will blue fescue suit your garden, and what goes wrong.
Will it thrive where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what blue fescue actually needs.
Hardy inZones 4-8Blue Fescue at a glance
Common blue fescue problems
- None
- Crown Rot in humid clay
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Growing
Light, water, soil, propagation and the season’s jobs.
How to grow blue fescue: light, water & soil
How to plant & propagate blue fescue
III
The year
What blue fescue asks for, month by month.
The blue fescue year, month by month
BloomPruneWhat each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
- Prune — shape it now — cuts heal cleanly and structure is visible.
The blue fescue year as text
- Jan quiet month
- Feb quiet month
- Mar pruning
- Apr pruning
- May pruning
- Jun bloom
- Jul quiet month
- Aug quiet month
- Sep quiet month
- Oct quiet month
- Nov quiet month
- Dec quiet month
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
IV
Ecology & uses
What it does for the garden, and what it is grown for.
Blue Fescue in the garden system
- Groundcover layer grass
- Living mulch
What blue fescue is grown for
✓ Not known to be toxic
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
V
Cultivars
Named varieties of blue fescue, ruled as a catalogue.
Best blue fescue varieties & cultivars
'Elijah Blue' (the standard); 'Beyond Blue' (holds color hardest)
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Sources & plant ID
Where the care distinctions come from, and how the plant is filed.
Research basis
Sources behind this profile
No extension citations are attached to blue fescueyet. The care figures below come from the library's own catalogue rather than a traced primary source.
Plant ID
VII
Where to buy
Third-party nurseries — not Story Thyme Farms.
Third-party nurseries, not Story Thyme Farms. Prices are theirs.
Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.
VIII
Questions
Blue Fescue questions, answered straight.
Is blue fescue safe for kids and pets?
Blue Fescue is commonly eaten and isn't considered toxic, but "commonly eaten" isn't a guarantee for any particular person or animal — allergies, quantity, and which part you eat all matter. Never eat a plant you haven't positively identified, and check with a vet before letting pets or livestock graze anything new.
How do you propagate blue fescue?
Division or seed.
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Elsewhere
Where blue fescue sits in the library.
Nasturtium
Juniper
Hens and Chicks
Hardy Ice Plant