Ranunculus weberbaueri

RHS Plant Profile
Weberbauer's buttercup

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Alpine Rockery

A rosette-forming perennial to 15cm, with thick, rounded, glossy, mid-green leaves. In spring produces solitary, spherical, glossy, red buds atop stout, upright stems, opening to reveal red, yellow or bright green petals around a central green boss ringed by deep yellow stamens

Position

Partial shade

Soil Types

Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

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

Position

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)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Ranunculaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Tufted
Potentially harmful
Harmful if eatenskin irritant. Wear gloves and other protective equipment when handling. Pets: Harmful if eatenskin irritant - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Ranunculus can be annuals, biennials, evergreen or herbaceous perennials, with rhizomes, tubers or spreading by runners. The leaves are variable but often palmately lobed or dissected and the flowers usually bowl-shaped
Name Status
Unresolved

How to Grow

Cultivation

Grow in deep, terracotta pots to accommodate the large root system, in peat-free, loam-based compost with added grit, in a cold frame or alpine house protected from excess cold and wet in winter, and shaded from hot summer sun

Propagation

Propagate by seed

Suggested planting locations and garden types

  • Patio and container plants
  • Conservatory and greenhouse

Pruning

No pruning required

Pests

May be susceptible to aphids, greenhouse red spider mite and leaf miners

Diseases

May be susceptible to powdery mildews, a rust and grey moulds