Details
 
'Iceberg' is a deciduous, clump-forming plant with stout stems bearing fleshy ovate, pale grey-green leaves and domed clusters of starry white flowers in late summer and early autumn.
 
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H7 - Hardy in the severest European continental climates (< -20)
 
Sunlight
Full sun
Aspect
South-facing
Exposure
Sheltered or Exposed
 
Moisture
Well-drained
 
Soil
Chalk, Sand, Loam
 
pH
Alkaline or Neutral
 
Size
Ultimate height
0.1 - 0.5 metres
Ultimate spread
0.5- 1 metres
Time to Ultimate size
About 2 - 5 Years
 
How to grow
Cultivation
Grow in moderately fertile, well-drained, neutral to slightly alkaline soil in full sun. A drought-tolerant plant
 
Propagation
Propagate by division in spring. Propagate by softwood cuttings of non-flowering shoots in early summer
Suggested planting locations and garden types
Flower borders and beds Garden Edging City & Courtyard Gardens Coastal Cottage & Informal Garden Gravel Garden Patio & Container Plants
 
How to care
Pruning
Cut back after flowering to maintain shape or leave seedheads overwinter
 
Pests
May be damaged by slugs, snails and vine weevil
 
Diseases
May be subject to root rot