Veronica catarractae 'Avalanche'PBR (P)

RHS Plant Profile
parahebe 'Avalanche'

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parahebe 'Avalanche' RHS
parahebe 'Avalanche' RHS

Synonyms

Parahebe catarractae 'Avalanche'

Shrubs
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A compact, semi-evergreen to evergreen shrub forming low, spreading mounds of dark green, coarsely serrated leaves to 40cm tall. Saucer-shaped white flowers with small green eyes surrounded by a ring of small purple blotches are borne on short spikes in summer

Position

Full sun

Soil Types

Chalk, 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

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

Position

Full sun
Aspect
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)
H4
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Plantaginaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Matforming
Genus
Veronica can be annuals, perennials or sub-shrubs with paired leaves and small flowers usually in terminal or axillary racemes or spikes
Name Status
Accepted
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

This genus has changed from Parahebe to Veronica

How to Grow

Cultivation

Grow in well-drained soil in full sun with shelter from cold drying winds

Propagation

Propagate by seed in containers in cold frame as soon as ripe or in spring or propagate by semi-ripe cuttings in early or midsummer

Suggested planting locations and garden types

  • Coastal
  • Gravel garden
  • Rock garden
  • City and courtyard gardens
  • Cottage and informal garden
  • Flower borders and beds
  • Garden edging
  • Banks and slopes
  • Ground cover

Pruning

No pruning required

Pests

May be susceptible to aphids

Diseases

May be susceptible to downy mildews, fungal leaf spot, fungal rot, Phytophthora and sometimes honey fungus