Glandularia Sparkler Violet/White ('Kievertriviok') (Sparkler Series)

RHS Plant Profile
mock vervain [Sparkler Violet/White]

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Synonyms

Glandularia 'Kievertriviok'
Verbena 'Violet/White 42k'
Verbena 'Kievertriviok'
Verbena Splash Trailing Violet
Verbena Sparkler Violet/White

Bedding

A tender perennial usually grown as an annual bedding or container plant forming a mound of dark green foliage with spreading to semi-trailing stems. Small white and dark purple flowers up to 2cm in diameter are borne in rounded clusters throughout summer

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
1–2 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 or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing or East–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)
H3

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Verbenaceae
Native to GB/Ireland
No
Foliage
Semi evergreen
Habit
Bushy, Trailing
Genus
Glandularia are annuals or herbaceous perennials, native to The Americas and closely-related to Verbena (and included within Verbena until recently). Showy flowers typically have 5 petals and are held in rounded clusters in summer and autumn
Name Status
Trade

How to Grow

Cultivation

Grow in moderately fertile, moist but well-drained soil in full sun. Suited to annual bedding displays in containers for sunny spots. Feed and water well

Propagation

Propagate by seed in early spring or propagate by cuttings

Suggested planting locations and garden types

  • Cottage and informal garden
  • Hanging Basket
  • Patio and container plants
  • Flower borders and beds
  • Garden edging

Pruning

Deadhead regularly to promote flowering

Pests

May be susceptible to aphids and slugs

Diseases

May be susceptible to powdery mildews