A charming and easy-to-grow plant
It grows in small, grassy clumps of spear-shaped leaves, which explains its common name of White Idaho blue-eyed grass!
Sisyrinchium idahoense is actually a member of the huge Iridaceae (iris) family, native to the western United States (California, Oregon, Washington, Idaho) and from late spring produces a sublime flowering in bouquets of violet-blue stars with yellow throats.
The plant grows at altitudes below 2400 metres in damp regions (meadows, light understory, streamsides) in sandy soils.
The horticultural variety Sisyrinchium idahoense var macounii 'Album' has the same growing needs, but has a different, more compact habit and large white flowers, yet with the same yellow throats!
We like to grow it in the rockery in the sun or partial shade in poor, sandy soil, which is slightly acid to alkaline, fresh to damp and moderately dry in winter. Height: 12 cm. Hardiness: 6°C
To grow it successfully you need to make sure that the soil drains properly, but does not dry out.
It's a beautiful specimen to grow in pot on a patio or in an alpine greenhouse.
Maintenance: Divide every two to three years at the end of the summer to promote vigorous growth.
Synonyms: Sisyrinchium macounii 'Album', Sisyrinchium 'May Snow', Sisyrinchium bellum 'Album'
- 9,5cm pot
- Hardiness zones : zone 9-10
- Height: less than 10 cm
- Plant spacing: 20 cm
- Flower colour: white
- Flowering period: summer flowers