Botanical Name: Festuca glauca 'Boulder Blue'
Common Name: Boulder Blue Fescue  
Plant photo of: Festuca glauca 'Boulder Blue'
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Water Saving Tip:

Apply as little fertilizer as possible.

If you use fertilizer make sure it stays on the landscape, and carefully water it in so there is NO runoff.

  • Anatomy

  • Culture

  • Design

Plant Type

Ground cover, Grass


Height Range



Flower Color

Green, White


Flower Season



Leaf Color

Blue Green, Silver


Bark Color



Fruit Color



Fruit Season



Full, Half





Growth Rate



Soil Type

Sandy, Clay, Loam


Soil Condition

Average, Rich, Poor, Well-drained, Dry


Soil pH

Neutral, Basic


Adverse Factors


Design Styles

English Cottage, Formal, Japanese, Meadow, Mediterranean, Ranch, Spanish, Woodland


Accenting Features

Unusual Foliage


Seasonal Interest

Winter, Spring, Summer, Fall


Location Uses

Entry, Perennial Border, Foundation, Parking Strip, Parking Lot, Walkways, With Rocks


Special Uses

Container, Filler, Mass Planting, Lawn Alternative, Small Spaces


Attracts Wildlife


Information by: Stephanie Duer
  • Description

  • Notes

Intense blue coloration makes Boulder Blue a standout in the landscape. Grows 15 inches tall and 12 inches wide. Plumes are green to creamy white, turning wheat colored in the fall. Very upright habit. Taller than F. 'Sea Urchin.' Use in the perennial border or as a groundcover, though it isn't well suited for areas with foot traffic. It does look fabulous surrounding pavers for a walk or patio. Evergreen, or very nearly so.
Grows in full to part sun and well drained soil. Soggy or wet soils will cause it to rot out. No need to deadhead; birds love the seeds and the plume tend to breakup and fall apart on their own. Blends beautifully with thyme, sunrose, and pussytoes. Great in parkstrips.