Verbena macdougalii 'Lavender Spires'

RHS Plant Profile
mountain blue vervain 'Lavender Spires'

Save a plant

Where do you want to save Verbena macdougalii 'Lavender Spires'?

Plants I own
Wishlist
Go to My Plants
mountain blue vervain 'Lavender Spires' RHS / Joanna Kossak
mountain blue vervain 'Lavender Spires' RHS / Joanna Kossak

Synonyms

Verbena 'Lavender Spire'
Verbena 'Lavender Spires'

Herbaceous Perennial
Buy this from Plant Nurseries
15 Suppliers

A clump-forming perennial to 1.8m tall with rough, narrow leaves. Branching spikes of small lavender flowers are borne from mid-summer to autumn

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
1.5-2.5 metres

Growing Conditions

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

Position

Full sun
Aspect
East–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)
H5
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Verbenaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Genus
Verbena can be annuals, perennials or sub-shrubs, with toothed or pinnately lobed leaves and small, usually 5-petalled, salver-shaped flowers, typically held in spikes or panicles, in summer or autumn
Name Status
Unresolved

How to Grow

Cultivation

Grow in a moist but well-drained moderately fertile soil in full sun

Propagation

Propagate by softwood cuttings or by division

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Prairie planting
  • Gravel garden
  • Flower borders and beds

Pruning

Cut down after flowering

Pests

Generally pest-free

Diseases

Generally disease-free