Salvia 'Blue Spire' (Pe) | perovskia 'Blue Spire'

Other common names

sage 'Blue Spire'

Synonyms

Perovskia 'Blue Spire'
Perovskia hybrida 'Blue Spire'
Perovskia atriplicifolia 'Blue Spire'

Shrubs

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A small, upright deciduous sub-shrub to 1.2m, with white stems bearing deeply-divided, aromatic grey-green leaves. Small, violet-blue flowers in large plumy panicles appear in late summer and autumn

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: 1-1.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: East–facing or South–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): H5
Drought Resistance: Yes

Colour & Scent

Fragrance Foliage Stem

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Lamiaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Salvia can be annuals, biennials, herbaceous or evergreen perennials, or shrubs. They have paired, simple or pinnately lobed, often aromatic leaves and 2-lipped flowers in whorls, forming simple or branched spikes or racemes
Name Status: Accepted
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea: This genus has changed from Perovskia to Salvia

How to Grow

Cultivation

Grows well in poor but well-drained soils in full sun

Propagation

Propagate by softwood cuttings in late spring or semi-ripe cuttings in summer

Suggested planting locations and garden types

Gravel garden
City and courtyard gardens
Cottage and informal garden
Mediterranean climate plants
Wildlife gardens
Flower borders and beds

Pruning

Pruning group 6, cut back hard in early spring

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus (rarely), powdery mildews, verticillium wilt and foot and root rots