Details
 
 
 
L. grandiflora is a strong-growing, clump-forming evergreen plant, up to 90cm tall, with narrow, dark-green, grass-like leaves. In early summer, white, bowl-shaped flowers, 2-3cm across, are carried on erect stems and are followed by round seed pods in autumn which turn black when they mature
 
 
 
Hardiness
 
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
 
 
 
H3 - Hardy in coastal and relatively mild parts of the UK (-5 to 1)
 
 
 
Sunlight
 
Full sun
 
 
 
Aspect
 
South-facing, West-facing
 
 
 
Exposure
 
Sheltered
 
 
 
Moisture
 
Moist but well-drained
 
 
 
Soil
 
Clay, Loam
 
 
 
pH
 
Acid, Alkaline or Neutral
 
 
 
Size
 
Ultimate height
 
0.5-1 metre
 
Ultimate spread
 
0.5- 1 metres
 
Time to Ultimate size
 
About 2 ? 5 Years
 
 
 
How to grow
 
Cultivation
 
Grow in moderately fertile, moist but well-drained soil in full sun; will tolerate light shade. The foliage may be damaged in harsh winters
 
 
 
Propagation
 
Propagate by or devision 
 
Suggested planting locations and garden types
 
Flower borders and beds City & Courtyard Gardens Coastal Cottage & Informal Garden
 
 
 
How to care
 
Pruning
 
Remove flower stalks after flowering. Trim back damaged foliage in spring
 
 
 
Pests
 
Generally trouble free
 
Diseases
 
Generally trouble free
 
 
 
 
 
Source: https://www.rhs.org.uk