About
A clump-forming, semi-evergreen perennial with fans of narrowly sword-shaped leaves to 25cm long. Throughout summer, erect stems bear a succession of star-shaped, purple flowers to 2cm across.
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 hardinessH5
Plant details
Plant typeAlpine Rockery, Grass Like
HabitTufted
FoliageSemi evergreen
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, 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; plants are drought tolerant once established. 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