Sedum rupestre 'Blue Spruce'

Cactus Succulent Alpine Rockery

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A vigorous, mat-forming perennial, with succulent, blue-grey, cylindrical leaves, reminiscent of a blue-leaved conifer. In summer upright stems to 15cm carry clusters of star-shaped yellow flowers, pendent in bud but turning upward as they open

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Alkaline or Neutral

Position

Full sun

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

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Crassulaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Matforming
Genus: Sedum may be annuals or herbaceous or evergreen perennials with succulent stems and leaves and clusters of small, star-shaped flowers in summer or autumn
Name Status: Accepted

How to Grow

Cultivation

Grow in a sheltered position in moderately fertile, well-drained, alkaline to neutral soil in full sun. See hardy cacti and succulent cultivation for further advice

Propagation

Propagate by softwood cuttings

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Gravel garden
Patio and container plants
Rock garden
Low Maintenance
Garden edging
Ground cover

Pruning

Trim back after flowering to maintain shape

Pests

May be susceptible to vine weevil larvae

Diseases

May be susceptible to fungal and bacterial crown and root rots