Nassella viridula - Green Needle Grass

aka Stipa viridula

Native to the mixed-grass prairie habitat, Green needle grass is best used at the far edges of the lawn where it can benefit from the extra water. This bit of extra care is needed for this plant to look its best. A good way to see the full potential is to first grow it in ample sized containers.

Does best with high humidity.

Used for wildlife and naturalized areas. It is also a good transition plant between the cultivated garden and the landscape beyond.

Description: cool season; clump forming
Foliage is green; of narrow blade width; 30-60 cm (12-24") in height
Flowers in May/June; 40-60 cm (16-36") tall

Ideal conditions: sun to part shade; sandy loam; drought tolerant once established; needs 17" annual precipitation

Coldest zone: 4 (find your zone; further info on plant hardiness)

Partner with: Schizachyrium, Dictamnus albus, Sedum 'Matrona'

Season of interest: spring and fall (dormant in summer)

Drought tolerance rating: 1 (water to root depth once a month); further info

Native to: prairies of central North America

Recommended plant spacing: 30-60 cm (12-24") why such a difference?

Pronounciation: Nasella (nas-SEL-uh) viridula (vir-ID-yoo-luh)


More ornamental grasses

Compare Nassella viridula to our other grasses in this handy chart.


Nasella (or Stipa) viridula
Nassella viridula - Green needle grass