Glandularia 'Moon River'

RHS Plant Profile

vervain 'Moon River'

RHS 2001

Synonyms

Verbena 'Moon River'
Verbena speciosa 'Moon River'

Annual Biennial Bedding

A bushy, spreading bedding verbena with finely dissected leaves and violet-purple flowers in summer and autumn

Position

Full sun

Soil Types

Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 1–2 years
Max Spread: 0.5-1 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: East–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): H3

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Verbenaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
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: Accepted

How to Grow

Cultivation

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

Propagation

Propagate by seed sown in early spring at 18-21°C

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Patio and container plants
Flower borders and beds
Banks and slopes
Garden edging

Pruning

Cut back after flowering

Pests

Damage by slugs may be a problem

Diseases

Susceptible to powdery mildews