Acorus calamus 'Argenteostriatus' (v)

RHS Plant Profile
silver-striped sweet flag

Synonyms

Acorus calamus 'Variegatus'

Bogs Grass Like Aquatic

A spreading, tufted herbaceous perennial with aromatic, sword-shaped leaves striped longitudinally with creamy-white

Position

Full sun

Soil Types

Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
5–10 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Clay Loam Sand
Moisture
Poorly–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Acoraceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Tufted
Genus
Acorus are deciduous or semi-evergreen, moisture-loving rhizomatous perennials forming tufts of linear or sword-shaped leaves, with insignificant spike-like flowers borne near the tips of central leaf-like stems
Name Status
Accepted

How to Grow

Cultivation

Grow at pond margins in very moist or wet soils in full sun. Divide every few years to prevent congestion. See pond plants for further advice

Propagation

Propagate by rhizome division at the beginning of the growing season. Pot up and plant out only when fully established

Suggested planting locations and garden types

  • Cottage and informal garden

Pruning

Cut back after flowering

Pests

Generally pest-free

Diseases

May be susceptible to powdery mildews