About
A semi-evergreen perennial to 20cm tall, forming a clump of sword-shaped, grey-green leaves. Throughout summer it produces a succession of blue flowers with a yellow eye.
About the genus
Sisyrinchium can be annuals or rhizomatous perennials forming a clump of narrowly sword-shaped leaves with erect stems carrying solitary or clustered, star-shaped or bell-shaped flowers in spring or summer
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAlkaline, Neutral
Soil moistureWell-drained
AspectSouth-facing, West-facing
ExposureExposed, Sheltered
UK hardinessH4
Plant details
Plant typeAlpine Rockery, Grass Like
HabitClump forming
FoliageSemi evergreen
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Coastal, Gravel garden, Patio and container plants, Rock garden
Care notes
CultivationGrow in poor to moderately fertile, well-drained, neutral to slightly alkaline soil in full sun. Protect from excessive winter wet. Suitable for an alpine trough or gravel garden. May have the potential to become a nuisance as seeds prolifically
PruningNo pruning required
PropagationPropagate by division in spring
Pest resistanceGenerally pest-free
Disease resistanceMay be susceptible to root rot