A picture of a Blue-Eyed Grasses

Blue-Eyed Grasses

Sisyrinchium spp.

Also known as

Rush lily, Pigroot, Satin flower, Blue-eyed grass

Sisyrinchium bellum (4350730696) by Franco Folini (CC BY-SA 2.0)

Full Sun
Moderate watering


RHS hardiness


Minimum temperature

Expected size





  • spring
  • summer
  • autumn
  • winter

More images of Blue-Eyed Grasses

A photo of Blue-Eyed Grasses
A photo of Blue-Eyed Grasses
A photo of Blue-Eyed Grasses
A photo of Blue-Eyed Grasses
A photo of Blue-Eyed Grasses

Blue-Eyed Grasses Overview

Sisyrinchium is a genus containing over 200 annual and rhizomatous perennial species from the iris family, Iridaceae. They are also known as Blue-Eyed Grass. Some species in this genus are semi-evergreen and some species are classified as threatened or endangered. These are not true grasses, but many species in this genus superficially resemble grasses. They have linear to sword-shaped foliage and grow in a clumping fashion, low to the ground. Flowers are produced on stems with ridged outgrowths, termed winged stems. Flowers are arranged either singly or in clusters of 2-8, on equal length stems called umbels, each surrounded by modified leaves called bracts. Blooms are star or cup-shaped in appearance and may be coloured yellow, purple, pink, blue or white.

Common problems with Blue-Eyed Grasses

How to propagate Blue-Eyed Grasses



Special features of Blue-Eyed Grasses

Wet sites

Other uses of Blue-Eyed Grasses

Suitable for coastal conditions.

Summer Flowering Bulbs

Plant out these flowering bulbs in spring to enjoy their summer performance.

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Autumn Flowering Bulbs

Flowering in autumn these bulbs give a beautiful display.

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