Salvia Mystic Spires Blue ('Balsalmisp')

RHS Plant Profile

sage [Mystic Spires Blue]

Synonyms

Salvia 'Balsalmisp'
Salvia 'Mystic Spires Blue'
Salvia 'Mystic Spires'

Annual Biennial Bedding

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A half-hardy perennial usually grown as an annual, with compact, branching, upright growth, grey-green aromatic foliage and spires of deep blue flowers in summer and autumn

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 1 year
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid or Neutral

Position

Full sun

Aspect: 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): H3

Colour & Scent

Fragrance Foliage

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: Trade

How to Grow

Cultivation

Grow in fertile, well-drained, humus-rich soil in full sun. See our video How to care for tender salvia for more advice

Propagation

Propagate by softwood cuttings in spring or early summer

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Patio and container plants
Mediterranean climate plants
Wall side borders
Banks and slopes
Flower borders and beds

Pruning

Deadhead to prolong flowering

Pests

May be susceptible to slugs

Diseases

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