Koeleria vallesiana 'Mountain
Breeze' - Somerset Hair Grass
We are always on the lookout for hardy Koelerias and K.
vallesiana hasn't disappointed us. Besides being hardy to
Zone 3, it is a very attractive plant. Like the other two
Koelerias, the main feature is its flowers. Its profuse
blooms are displayed several inches above the steel blue
foliage, which is a nice contrast to the bright yellow-green
K. 'Mountain Breeze' is a seed grown variety, so if you
do see any seedlings, consider them a bonus, or if you wish
to keep a neatly organized patch, simply scratch them out.
Like Fescues, too much water is not good for Koelerias.
Good drainage will increase their longevity and will result
in the best looking plant.
Description: cool season; clump forming
Foliage is steel blue-green; narrow blade width; 25-30 cm
(10-12") in height
Flowers in May to July; 40-45 (16-18") tall
Ideal conditions: full sun to light shade;
needs good drainage; water when dry but do not overwater;
lightly fertilize but only in extremely poor soil
Coldest zone: 3 - 8 (find
your zone; further info on plant hardiness)
Season of interest: early spring into
Plant and divide: mid spring to early
fall; clip off flower stalks
Suggested uses: containers, specimen,
rock garden, drifts, groups and massed
Partner with: Sedums,
purpurea Nana, Carex flacca,
ssp montanum, Artemisia
Drought tolerance rating: 2 (water to
root depth every two weeks) further
Recommended spacing between plants: 30-45
cm (12-18") why such a difference?
Native to: Europe
Pronunciation: Koeleria (koh-LAIR-ee-uh)
Compare Koeleria vallesiana 'Mountain Breeze' to
our other grasses in this handy