Imperata cylindrica 'Rubra'
cogon grass 'Rubra'
'Rubra' is a deciduous grass forming a loose clump of erect, linear green leaves strongly suffused with deep red, and narrow silvery flower panicles in late summer
Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Red | |||
|---|---|---|---|---|
| Summer | Grey Silver | Green Red | ||
| Autumn | Green Red | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Poaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Tufted
- Genus
Imperata are deciduous, rhizomatous perennial grasses, with flat linear leaves which sometimes are brightly coloured and, occasionally, narrow silvery flowering panicles in late summer
- Name status
Accepted
How to grow
Cultivation
Easy to grow in most moist, humus-rich, well-drained fertile soils. May need winter protection in colder areas
Propagation
Propagate by division in mid-spring
Suggested planting locations and garden types
- Cottage and informal garden
- City and courtyard gardens
- Low Maintenance
- Flower borders and beds
Pruning
Remove dead foliage and old flowered stems in spring
Pests
Generally pest-free
Diseases
Generally disease-free
Get involved
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