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Cyperus papyrus 'Nanus' AGM

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© RHS

Characteristics

Plant type

Conservatory/Greenhouse or Aquatic

Habit

Bushy

Resilience

Hardiness

H1a (heated greenhouse - tropical)

Colour

Flower

Brown in Summer

Foliage

Green in Autumn, Spring, Summer and Winter

Fruit

Brown in Autumn

Size

Ultimate height

1-1.5 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

2-5 years


Preferred common name

dwarf papyrus

Family

Cyperaceae


Cyperus can be annuals or evergreen, rhizomatous perennials, with linear, grass-like leaves and terminal clusters of small greenish flower-spikes with spreading leaf-like bracts beneath

'Nanus' is a compact clump-forming plant to 1.2m, with narrow leaves and rounded umbels of many long-stalked tiny brown flower-heads

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing, West-facing or East-facing
  • Sheltered

Cultivation

Under glass grow in loam-based potting compost in bright filtered light. Water freely in summer. Stand containers in shallow trays of water to ensure ample moisture and high humidity at all times. Apply a balanced liquid fertiliser monthly. Can be grown outdoors as a bog or marginal plant

Soil

  • Poorly-drained
  • Acid, Alkaline or Neutral
  • Sand, Clay, Chalk or Loam

Propagation

Propagate by seed at 18 to 21°C in spring in constantly moist seed compost. Divide in spring

Suggested planting locations and garden types

Patio/Container Plants


How to care

Pruning

Cut back dead material in autumn

Pests

Generally pest free

Diseases

Generally disease free