Erica mackayana f. eburnea 'Doctor Ronald Gray'

RHS Plant Profile
Mackay's heath 'Doctor Ronald Gray'

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Synonyms

Erica mackayana 'Dr Ronald Gray'

Plants for pollinators
Shrubs

A low-growing, broadly spreading, evergreen shrub with short, oval, mid-green foliage to around 15cm (6in) in height. From summer to early autumn it produces small, rounded clusters of bell-shaped, white flowers at the stem ends.

Position

Full sun

Soil Types

Clay, 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

Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid

Position

Full sun
Aspect
South–facing or West–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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Ericaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus
Erica can be prostrate or erect, evergreen shrubs with fine, needle-like leaves in whorls, and racemes or panicles of small, bell-shaped or tubular flowers
Name Status
Accepted

How to Grow

Cultivation

Grow in moist but well-drained, moderately fertile soil in full sun. See also Hardy heathers cultivation.

Propagation

Propagate by semi-ripe cuttings in mid-to late autumn and by layering.

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Coastal
  • Wildlife gardens
  • Mediterranean climate plants
  • Low Maintenance
  • Flower borders and beds

Pruning

See pruning group 10

Pests

Generally pest-free

Diseases

May be susceptible to fungal diseases, including honey fungus (rarely), and Phytophthora root rot, in wet conditions