Vancouveria hexandra

RHS Plant Profile
white inside-out flower

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white inside-out flower RHS
white inside-out flower RHS

Other common names

American barrenwort, inside-out flower

Alpine Rockery Herbaceous Perennial
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A creeping, deciduous perennial with fresh bright green leaves emerging in spring. In late spring, and early summer sprays of white flowers are borne on leafless stems.

Position

Partial shade

Soil Types

Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Partial shade
Aspect
North–facing or West–facing or East–facing
Exposure
Exposed or 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
Berberidaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Matforming
Genus
Vancouveria is a small genus of perennial herbs with delicate bell-shaped flowers that sweep backwards, giving the impression of them being turned inside-out. Flowers are pinkish-white to yellow on thin, upright stems in late spring to early summer. Leaves can be deciduous or evergreen and berries bright red to blue-black.
Name Status
Correct
Plant Range
Western N America

How to Grow

Cultivation

Grow in partial shade, in a humus-rich, moist fertile soil

Propagation

Divide in spring or sow seed in containers, in a cold frame as soon as ripe

Suggested planting locations and garden types

  • City and courtyard gardens
  • Rock garden
  • Low Maintenance
  • Flower borders and beds
  • Wall side borders

Pruning

No pruning required

Pests

Vine weevil may be a problem

Diseases

Generally disease-free