Trillium grandiflorum 'Flore Pleno'
double-flowered American wake robin
A clump-forming herbaceous perennial to 40cm, with large, broadly ovate leaves and solitary, fully double, pure white flowers 8-12cm across in spring and early summer
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | White | Green | ||
|---|---|---|---|---|
| Summer | White | Green | ||
| Autumn | ||||
| Winter |
Position
- Full shade
- Partial shade
Aspect
North–facing or West–facing or East–facing
Exposure
Sheltered Hardiness
H5Botanical details
- Family
- Melanthiaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- 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
- Name status
Accepted
How to grow
Cultivation
Grow 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
Propagation
Propagate 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 of offsets
Suggested planting locations and garden types
- Cottage and informal garden
- Underplanting of roses and shrubs
- Flower borders and beds
Pruning
No pruning required
Pests
Diseases
Generally disease-free
Get involved
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