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A picture of a Cobra Lily

Cobra Lily

Arisaema costatum

Also known as

Jack In The Pulpit

Photo by PimlicoDan (All rights reserved)

Full Shade
Moderate care
Moderate watering
Frost Hardy

H4

RHS hardiness

-10°C

Minimum temperature

Expected size

Height
Spread

60cm

Max

30cm

20cm

Min

10cm

2 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has no fragrance

More images of Cobra Lily

A close up of a dark purple Arisaema costatum flower
A close up of a dark Arisaema costatum flower
A Arisaema costatum plant
A close up of a Arisaema costatum plant

Cobra Lily Overview

Arisaema costatum is a tuberous perennial species from the Araceae family, native to Tibet. It produces a large dramatic, dark brownish-purple flowering spathe striped with white in late spring/early summer. Commonly known by the names Cobra Lily and Jack In The Pulpit, this plant typically grows to less than half a metre tall. Leaves are divided into groups of 3 oval leaflets.

Common problems with Cobra Lily

How to harvest Cobra Lily

Generally not harvested

How to propagate Cobra Lily

Seed

Division

Special features of Cobra Lily

Attractive flowers

Other uses of Cobra Lily

A low maintenance plant suitable for cool moist locations, with winter protection it is most frequently grown as a house plant.