About
An evergreen perennial forming a clump of erect, sword-shaped grey-green leaves margined with cream, with erect leafy stems bearing several clusters of pale yellow flowers in summer.
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
ExposureExposed, Sheltered
UK hardinessH4
Plant details
Plant typeHerbaceous Perennial
HabitTufted
FoliageEvergreen
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Gravel garden
Care notes
CultivationGrow in a poor to moderately fertile, well-drained, neutral to slightly alkaline soil in full sun. Protect from excessive winter wet. Lift and divide every year or so to ensure flowering. May have the potential to become a nuisance as seeds prolifically
PruningRemove discoloured foliage and faded flowers
PropagationPropagate by division in spring
Pest resistanceGenerally pest-free
Disease resistanceMay be susceptible to root rot