Cannomois grandis

Award of Garden Merit
Herbaceous Perennial

A vigorous evergreen, perennial of bamboo-like stout clumps rising from rhizomes, with drooping, feathery green to reddish-pink foliage. Male plants have inflorescens of spherical, shiny, plum-brown flowers and female plants have flower heads of large, swollen brown spikelets.

Position

Full sun, Partial shade

Soil Types

Loam, Sand

Max Height

4-8 metres

Max Spread

4-8 metres

Size

Time to Maturity
2–5 years
Max Spread
4-8 metres
Max Height
4-8 metres

Growing Conditions

Loam Sand
Moisture
Well–drained or Moist but well–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Restionaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming, Pendulous weeping
Genus
Name Status
Correct

How to Grow

Cultivation

Will grow well in moist but well-drained soil in a sunny position. Keep moist in dry weather. Mulch in winter to protect it from cold weather.

Propagation

Propagate by seed or by division.

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Gravel garden
  • Mediterranean climate plants
  • Patio and container plants
  • Low Maintenance
  • Flower borders and beds
  • Wall side borders

Pruning

Remove dead culms as and when needed. Cut down culms to the ground in autumn to stimulate new growth in tired plants.

Pests

May be susceptible to white fly and red spider mite

Diseases

Generally disease-free.