• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

× Heucherella 'Solar Power' (PBR)

heucherella 'Solar Power'

heucherella 'Solar Power'

© © RHS

  • Other common names heucherella 'Solar Power'

  • Family Saxifragaceae

  • Genus x 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

  • Details 'Solar Power' is a clump-forming, evergreen perennial, 25 × 30cm, with lobed, yellow-green leaves mottled with dark red. Upright sprays of small, white, bell-shaped flowers appear from spring

Characteristics

  • Foliage Evergreen

  • Habit Clump-forming

  • 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

Sunlight

  • Full Sun

  • Partial Shade

  • Full Shade

  • Aspect South-facing or East-facing or West-facing or North-facing

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilSand, Loam

  • pHNeutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in fertile, moist, but well-drained soil in sun or shade. Prefers partial shade but keeps its colour in shade and, if the soil is moist, will also tolerate full sun. To prevent the rhizomes rising to the surface, mulch annually and divide every few years

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 Flower borders and beds Ground Cover Underplanting of Roses and Shrubs Cut Flowers Banks and Slopes Garden Edging Cottage & Informal Garden Patio & Container Plants City & Courtyard Gardens

How to care

Pruning Remove dead leaves and deadhead

Pests vine weevil may be a nuisance

Diseases Rust diseases may be problematic

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