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Annual BiennialBedding

Glandularia canadensis 'Toronto'

rose vervain 'Toronto'

A bushy plant with bright green foliage and vivid reddish-purple flowers in dense racemes to 4.5cm in length, in summer and autumn

Other common names

vervain 'Toronto'

Synonyms

Verbena canadensis 'Toronto'

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Ultimate height

0.1–0.5 metres

Time to ultimate height

1–2 years

Ultimate spread

0.1–0.5 metres

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

West–facing or East–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)

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

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

Pruning

Cut back after flowering

Pests

Damage by slugs may be a problem

Diseases

Susceptible to powdery mildews

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