Uvularia grandiflora

RHS Plant Profile

large-flowered bellwort

Other common names

bellwort, cornflower, merry bells, wood daffodil, throat root, Wisley Strain bellwort

Synonyms

Uvularia grandiflora Wisley form
Uvularia grandiflora Wisley Strain

Herbaceous Perennial

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A perennial to 75cm in height, with arching stems bearing bright green, lanceolate leaves and terminal clusters of nodding, narrowly bell-shaped yellow flowers with narrow, twisted tepals

Position

Full shade, Partial shade

Soil Types

Clay, Loam

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Clay Loam

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full shade Partial shade

Aspect: North–facing or West–facing or East–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): H7

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Colchicaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
Genus: Uvularia are rhizomatous herbaceous perennials with arching stems bearing alternate, ovate leaves and nodding, narrowly bell-shaped yellow flowers
Name Status: Correct
Plant Range: E North America

How to Grow

Cultivation

Grow in fertile, humus-rich, moist but well-drained soil in deep or partial shade

Propagation

Propagate by seed in pots in a cold frame as soon as seed is ripe. Propagate by division in early spring

Suggested planting locations and garden types

Cottage and informal garden
Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free