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Arundo donax 'Macrophylla'

giant reed 'Macrophylla'

'Macrophylla' is an evergreen grass to 3m or more in height with thick, bamboo-like stems and wide, strap-shaped, arching, glaucous-green leaves. Feathery panicles of purple-flushed flowers may be borne in autumn

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Size
Ultimate height
2.5–4 metres
Time to ultimate height
2–5 years
Ultimate spread
1–1.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Poorly–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Green Grey Silver
Autumn Purple Green Grey Silver
Winter Green Grey Silver
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Poaceae
Native to the UK
No
Foliage
Evergreen
Habit
Columnar upright
Genus

Arundo are a genus of tall, robust, evergreen grass-like perennials, some reed-like in appearance, which are native to southern Europe, North Africa and temperate Asia

Name status

Accepted

How to grow

Cultivation

This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act (Northern Ireland) as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN NORTHERN IRELAND. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information

Propagation

Please see cultivation notes

Suggested planting locations and garden types
Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.