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Herbaceous Perennial

Salvia guaranitica 'Black and Bloom'

anise-scented sage [Black and Bloom]

A tall perennial to 120cm tall, forming a wide clump of stems bearing dark green ovate leaves and loose spikes of vivid cobalt blue flowers, contrasting with black calyx, and opening in mid-summer and autumn

Synonyms

Salvia guaranitica 'Black & Bloom'
Salvia 'Balsaloom'
see moreSalvia Black & Bloom

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Ultimate height

1–1.5 metres

Time to ultimate height

1–2 years

Ultimate spread

1–1.5 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–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)

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

Best grown in full sun, in well-drained soil with shelter from cold winds. Maintain low humidity for plants overwintered indoors in a greenhouse. Under glass grow in well-drained , peat-free potting compost in full light with shade from hot sun

Propagation

Propagate by division of established clumps. Take softwood and semi-ripe stem-tip cuttings from new non-flowering growth. Take basal stem cuttings from new shoots that are about 8cm (3in) tall

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Coastal
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

May be susceptible to slugs and snails, capsid bug, leafhoppers, aphids, glasshouse red spider mite and glasshouse whitefly

Diseases

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

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