Not the plant you're looking for? Search over 300,000 plants

Herbaceous Perennial

Adenophora khasiana

A herbaceous perennial, up to 1.2m high, with thick, fleshy roots and upright stems with lance-shaped, serrated green leaves. Nodding, narrowly funnel-shaped, pale lavender blue flowers are borne in clusters of three in late summer

Save to My plants

Buy this plant

Plant nurseries
4 suppliers

Ultimate height

1–1.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or South–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: Campanulaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Adenophora are deciduous perennials closely related to Campanula and bearing similar, bell-shaped or funnel-shaped, violet-blue flowers in large terminal panicles or racemes in summer, above rounded basal leaves
Name status: Unresolved

How to grow

Cultivation

Thrives in humus-rich, moist but well-drained soil in sun or part shade. Dislikes root disturbance and plants rarely tolerate division

Propagation

Propagate by seed, or by basal softwood cuttings in late spring

Suggested planting locations and garden types

Cottage and informal garden
Prairie planting
Wildlife gardens
Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to slugs, snails and vine weevil

Diseases

Generally disease-free

Love gardening

View our Privacy Policy

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.