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Herbaceous Perennial

Salvia guaranitica 'Blue Enigma'

anise-scented sage 'Blue Enigma'

A tall perennial with ovate leaves and terminal and axillary spikes of deep blue, two-lipped flowers 5cm in length, in late summer and autumn

Synonyms

Salvia ambigens

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Ultimate height

1–1.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or East–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)

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

How to grow

Cultivation

Grow in light, moderately fertile, humus-rich, moist but well-drained soil. Best in full sun but can tolerate light partial shade. Usually needs some support

Propagation

Propagate by basal cuttings or softwood cuttings in spring or early summer or semi-hardwood cuttings in late summer or autumn with bottom heat

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Mediterranean climate plants
Patio and container plants
Wildlife gardens
Flower borders and beds
Bedding
Conservatory and greenhouse

Pruning

Cut back spent flower spikes to prolong flowering

Pests

Generally pest-free

Diseases

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

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