Veronica missurica subsp. stellata

RHS Plant Profile

western mountain kittentails

Other common names

Columbia synthyris, Columbia kittentails

Synonyms

Synthyris missurica 'Stellata'
Veronica missurica 'Stellata'
Synthyris stellata
Synthyris missurica subsp. stellata

Herbaceous Perennial

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A clump-forming, herbaceous perennial to about 15cm high, with deeply toothed, slightly hairy, rounded to kidney-shaped leaves. Short, upright spikes of pendent, bell-shaped blue-purple flowers with conspicuous bracts are produced in spring and early summer

Position

Full shade, Partial shade

Soil Types

Loam

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

Loam

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full shade Partial shade

Aspect: East–facing or North–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: Plantaginaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
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: Correct
Plant Range: W USA

How to Grow

Cultivation

Grow in fertile, moist but well-drained soil in partial or deep shade

Propagation

Propagate by seed or by division in early spring

Suggested planting locations and garden types

Cottage and informal garden
Wildflower meadow
Flower borders and beds

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