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Herbaceous Perennial

Tricyrtis hirta 'Taiwan Atrianne'

Japanese toad lily 'Taiwan Atrianne'

A clump-forming, deciduous perennial to 60cm tall with erect stems and hairy green leaves with light purple spotting. Upwards-facing, white, star-shaped flowers with deep purple spotting are produced from late summer to autumn

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Clay

Loam

Moisture

Moist but well–drained

pH

Acid, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full shade
Partial shade

Aspect

East–facing or North–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Liliaceae
Native to the UK: No
Foliage: Deciduous
Habit: Clump forming, Columnar upright
Genus: Tricyrtis are rhizomatous perennials, sometimes stoloniferous, with erect or arching stems with alternate, sometimes 2-ranked leaves and star-shaped or bell-shaped flowers that may be solitary or in terminal or axillary clusters
Name status: Accepted

How to grow

Cultivation

Grow in moist but well-drained, humus rich soil in deeper or partial shade. Keep mulched to reduce drying out of the soil in summer and subsequent foliage damage. Well suited for woodland garden and shady borders

Propagation

Propagate by division in early spring

Suggested planting locations and garden types

Cottage and informal garden
Flower borders and beds
Underplanting of roses and shrubs

Pruning

Cut back old stems as the plants die back for the winter

Pests

May be susceptible to damage by slugs and snails

Diseases

Generally disease-free

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