About
An evergreen perennial to 20cm tall, forming a clump of linear, grey-green leaves. In late spring and early summer it produces golden yellow flowers with a dark red star-shaped marking at the centre.
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
ExposureSheltered
UK hardinessH4
Plant details
Plant typeAlpine Rockery, Grass Like
HabitTufted
FoliageEvergreen
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCottage and informal garden, Gravel garden, Patio and container plants, Rock garden
Native toS America
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 seed or division in spring
Pest resistanceGenerally pest-free
Disease resistanceMay be susceptible to root rot