× Heucherella 'Quicksilver'

RHS Plant Profile
heucherella 'Quicksilver'

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Synonyms

× Heucherella 'Quick Silver'

Herbaceous Perennial
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A clump-forming, semi-evergreen perennial, to around 25cm high, with lobed, deep green and bronze leaves with a strong silver flush, giving an almost metallic appearance. Slender stems bear clusters of tiny, bell-shaped white flowers from late spring into summer

Position

Full sun, Partial shade, Full shade

Soil Types

Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

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

Growing Conditions

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

Position

Full sun Partial shade Full shade
Aspect
East–facing or North–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)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Saxifragaceae
Native to GB/Ireland
No
Foliage
Semi evergreen
Habit
Clump forming
Genus
× Heucherella are hybrids between Heuchera and Tiarella, and are evergreen, clump-forming perennials with ovate or rounded leaves and open panicles of small bell-shaped pink or white flowers over a long period
Name Status
Accepted

How to Grow

Cultivation

Thrives in fertile, moist but well-drained soil in dappled or afternoon shade, or in full sun if the soil is reliably moist. Mulch annually, and divide every few years to prevent the rhizomes rising to the surface

Propagation

Propagate by division. Lift the plant once in spring growth, taking small vigorous sections from around the edge. Each section should have good roots and 2-3 shoots

Suggested planting locations and garden types

  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds
  • Garden edging
  • Ground cover
  • Underplanting of roses and shrubs

Pruning

No pruning required, but old leaves and flower stems may be removed to improve appearance

Pests

May be susceptible to vine weevil, especially when grown in containers

Diseases

Generally disease-free