- Spear Grass, Needle Grass, Silver Spike Grass
aka Stipa calamagrostis
This fine-textured grass is grown for the colourful early blooming
flowers. From June on through the growing season, the tan blossoms remain
attractive into the winter. This plant sways beautifully in a breeze.
This variety is seed grown and therefore can vary considerable from
one plant to the next.
Worth growing because it is so utterly graceful.
We are very pleased to be able to display the photo of Allan's magnificent
plant growing in northern Oregon, in the Columbia River valley, where
summers are very hot.
Description: cool season; clump forming
Foliage - grey-green; the blades are narrow; 50-70 cm (20-28")
Flowers - June-July; 80-100 cm (32-40") tall
Ideal growing conditions: part shade to full sun
(with ample water); moist, well drained, fertile soil; tolerates poor
soil with ample water; more drought tolerant in partial shade
Coldest zone: 5, possibly colder
(find your zone; further info on plant hardiness)
Partner with: Persicaria
polymorpha, Achillea, Nepeta
Recommended spacing between plants: 50-90cm (20-36")
why such a difference?
Season of interest: June to winter
Drought tolerance rating: 2 (water to root depth once
every 2 weeks); further info
Native to: naturalized in central and southern Europe
at high elevations
Pronunciation: Achnatherum (ack-NATH-er-um) calamagrostis
More ornamental grasses
Compare Achnatherum calamagrostis to our other grasses in
this handy chart.