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Arisaema triphyllum

American wake robin

Garden

Wishlist

  • Arisaema triphyllum | Copyright Greenplantswap 2018

Features

  • Blooms & FruitsApril & September
  • Height0.3m to 0.6m
  • Spread0.1m to 0.2m
  • Growth HabitStalked clump
  • Flower ColourGreen purple
  • Leaf ColourMid green

Description

Arisaema triphyllum (American wake robin). This is one of the distinctive wildflowers of North America’s north-eastern woodlands, flowering in spring before the trees leaf. One or two mid green leaves (each divided into 3 leaflets) expand to a height of about 30cms after the flowers fade. The spathe of green to brown encloses a spadix, the tip flops over. Dark red berries ripen in autumn when the leaves died down.

Characteristics

Perennial, Bulb, Fragrant

Origin

U.S.A

Interest and use

Grown for the large, curious, hooded spathes, each enclosing a pencil-shaped spandex.

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  • Arisaema triphyllum | Copyright Greenplantswap 2018

Needs

  • LightFull sun or Part shade
  • HardinessFully hardy (min -15°C)
  • SoilLight, Medium
  • WaterSemi-moist

Cultivation

They are fully to half hardy and will need sun or partial shade and humus-rich soil. You will need to plant the tubers about 15cm deep in the spring.

Propagation

Propagation is by seeds in the autumn or spring, or by offsets in the spring.

Pests, diseases or disorders

Vulnerable to slugs and vine weevils.

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