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Herbaceous Perennial

Salvia 'Jackson's Cassis'

sage 'Jackson's Cassis'

A woody-based herbaceous perennial up to 60cm high with evergreen, aromatic, ovate, mid-green leaves and dark pink flowers from summer to autumn

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained, 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: Evergreen
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: Unresolved

How to grow

Cultivation

Grow in light, moderately fertile, humus-rich, moist but well-drained soil in full sun with shelter from cold, drying winds; in frost-free areas in winter, protect from excessive wet, while in frost-prone areas protect plants with biodegradable fleece, move plants under cover, or take cuttings to provide next year's plants.

Propagation

Propagate by division in spring, by basal or softwood cuttings in spring or early summer, or by semi-ripe cuttings in late summer or autumn

Suggested planting locations and garden types

Gravel garden
Patio and container plants
City and courtyard gardens
Cottage and informal garden
Wildlife gardens
Flower borders and beds
Wall side borders

Pruning

Cut back spent flower spikes to prolong flowering

Pests

Generally pest-free but may be susceptible to capsid bug, leafhoppers, slugs and snails; under glass, may be susceptible to aphids, glasshouse red spider mite, and whiteflies

Diseases

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

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