About
A deciduous, rhizomatous herbaceous perennial with broadly ovate dark green leaves and large, textured, flat white flowers with overlapping petals and a violet-purple centre, appearing in mid to late spring.
About the genus
Trillium are rhizomatous, herbaceous perennials with erect stems bearing a whorl of ovate or diamond-shaped leaves, with one or more erect or nodding flowers borne at the stem apex
Growing conditions
SunlightFull shade, Partial shade
Soil typeChalk, Loam, Sand
Soil pHAcid, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectEast-facing, North-facing, West-facing
ExposureSheltered
UK hardinessH5
Plant details
Plant typeHerbaceous Perennial
HabitColumnar upright
FoliageDeciduous
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCottage and informal garden
Native toSE USA
Care notes
CultivationGrow in deep, moist but well-drained, humus-rich, preferably acid to neutral soil in deep or partial shade. Mulch in autumn with leaf mould. See trillium cultivation
PruningNo pruning required
PropagationPropagate by seed in pots in a shady cold frame as soon as seed is ripe; takes 5-7 years to reach flowering size. Propagate rhizomes by division after flowering or cut out the growing point from the rhizome after flowering, which stimulates the formation
Pest resistanceMay be susceptible to slugs and snails
Disease resistanceGenerally disease-free