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Arundo Donax Peppermint Stick

Arundo donax (a-RUN-doh DOH-naks)

Family: Poaceae Non-native Understory (15-40 ft)

'Peppermint Stick' giant reed grass is a cultivar in the Poaceae (grass) family. It is native to a wide range from Saudi Arabia across China and Japan to Malaysia. Peppermint Stick can grow 10 to 20 feet tall and spreads up to 10 ft. It is happiest in rich, damp soil, but will tolerate almost any conditions you give it. Cut it to the ground in winter and divide as needed to control the size of the clump. The variegated leaves of this cultivar maintain their color during the growing season. The large purplish-brown plumes appear in late summer and look nice swaying in the breeze. This cultivar appears to be sterile and generally doesn't set seed. This grass requires a large area to grow in and can be used as a focal or specimen plant, often in botanical garden-type settings. Insects, Diseases, and Other Plant Problems: The species is listed on various government invasive weed lists in Canada and the USA, where it outcompetes other plants for limited water resources. VIDEO created by Andy Pulte for “Landscape Plant Identification, Taxonomy and Morphology” a plant identification course offered by the Department of Plant Sciences, University of Tennessee.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 33 attributes.

How it fits the guild

Guild layer 2 - Understory (15-40 ft)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Canna Molinia caerulea Vitex agnus-castus

Full plant profile

Growing Conditions
Plant type
Herbaceous Perennial; Ornamental Grasses and Sedges
Life cycle
Perennial
USDA zones
6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; Loam (Silt); Sand
Soil drainage
Good Drainage | Moist | Occasionally Wet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 10 ft. 0 in. - 20 ft. 0 in. | Width: 8 ft. 0 in. - 10 ft. 0 in.
Canopy layer
2 - Understory (15-40 ft)
Form & Appearance
Habit / form
Arching; Erect
Leaf color
Green; Variegated; White
Leaf type
Sheath; Simple
Leaf shape
Linear
Leaf margin
Entire
Leaf value
Long-lasting; Showy
Hairs present
No
Leaf detail
Large sword-like leaves resembling corn are variegated white and green. The sheath is tight to the cane.
Flower detail
Airy plumes of burgundy flowers rise above the foliage from late summer to mid-fall.
Fruit detail
The fruit is not ornamentally significant.
Stem detail
Jointed hollow canes
Wildlife & Ecology
Native status
Non-native
Origin
Asia
Landscape Use
Landscape location
Coastal; Naturalized Area
Landscape theme
Asian Garden; Rain Garden
Design feature
Accent; Screen/Privacy; Specimen
Garden tags
#showy leaves #large spaces #grass #ornamental grass #showy flowers #sun #water garden #landscape plant sleuths course #specimen #variegated
Problems & Resistance
Resistant to
Deer; Pollution

Planted at Hunnicutt

Nobody’s planted this one yet.