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Alpine Rockery

Dryas × suendermannii

Suendermann dryad

D x suendermannii is a creeping evergreen shrub forming a wide mat to 15cm tall, with glossy, oak-like leaves to 2cm long. Flowers nodding, cream from yellowish buds, not opening widely, in late spring, followed by attractive, silky seed-heads

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Ultimate height

Up to 10cm

Time to ultimate height

5–10 years

Ultimate spread

0.5–1 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

North–facing or West–facing or East–facing or South–facing

Exposure

Exposed

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: Rosaceae
Native to the UK: No
Foliage: Evergreen
Habit: Matforming
Genus: Dryas are prostrate evergreen shrubs with small, leathery dark green leaves and solitary, usually 8-petalled flowers followed by attractive fluffy seed-heads
Name status: Correct

How to grow

Cultivation

Easily cultivated carpeting plant, suitable for a rock garden or border edge. Prefers well-drained, humus rich, preferably gritty soil

Propagation

Propagate by seed, sown in containers in a cold frame as soon as ripe, or softwood cuttings in early summer

Suggested planting locations and garden types

Cottage and informal garden
Patio and container plants
Rock garden
Gravel garden
Banks and slopes

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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