About
This clump-forming perennial with narrow hairless mid-green leaves and reddish-purple flowers in loose open flower spikes from summer to autumn.
About the genus
Lythrum can be annuals or herbaceous perennials, with simple leaves in opposite pairs and small star-shaped flowers in leafy racemes
Growing conditions
SunlightFull sun
Soil typeClay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moisturePoorly-drained
AspectSouth-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH6
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageDeciduous
Height1-1.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Coastal, Cottage and informal garden, Wildlife gardens
Care notes
CultivationGrow in any reliably moist soil in full sun
PruningDeadhead after flowering to prevent self-seeding
PropagationPropagate by division in spring
Pest resistanceMay be susceptible to slugs and snails
Disease resistanceGenerally disease-free