About
A semi-evergreen perennial with sword-shaped, grey-green leaves to 15cm long. As Sisyrinchium californicum from British Columbia, this form brings its own merit to the garden.
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 typeClay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moisturePoorly-drained
AspectSouth-facing, West-facing
ExposureSheltered
UK hardinessH4
Plant details
Plant typeBogs, Grass Like
HabitClump forming
FoliageSemi evergreen
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCoastal
Care notes
CultivationGrow in boggy conditions, or in an aquatic planting basket on a pond shelf, using loam or specialist aquatic potting soil. May have the potential to become a nuisance as seeds prolifically
PruningNo pruning required
PropagationPropagate by division or seed
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free