Festuca glauca 'Boulder Blue' -
Boulder Blue Fescue
F. Boulder Blue is not as soft-looking as F. Elijah Blue,
but is a very bright blue, and seems a little more drought
tolerant. All the blue fescues look great with sedums as
a ground cover. Two particularly nice ones are Sedum album
with its coral tones, and Sedum spurium 'Fuldaglut'.
Description: cool season; clump forming
Foliage is an intense blue colour; narrow blade width; 15-25
cm (6-10") tall; more upright than F. 'Elijah Blue'
Flowers in May and June; 20-30 cm (8-12") in height
Ideal conditions: full sun, light shade; moist well-drained
soil; drought tolerant in shaded areas; does well in cool coastal sites
Coldest zone: 3
(find your zone; further info on plant hardiness)
Partner with: rock garden plants, purple-leaved
plants, Koeleria pyramidata,
Crocus vernus, Veronica spicata 'Nana', small sedums
Season of interest: year-round in mild climates
Suggested uses: specimen, container, rock garden,
sunny border, massing
Recommended plant spacing: 20-40 cm (8-16") why
such a difference?
Drought tolerance rating: 2 (water to root depth once
every 2 weeks); further info
Pronounciation: Festuca (fes-TOO-kah) glauca (GLOU-kah)
More ornamental grasses
Compare Festuca glauca 'Boulder Blue' to our other grasses
in this handy chart.