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A picture of a Hemlock Water-Dropwort

Hemlock Water-Dropwort

Oenanthe crocata

Also known as

Dead Tongue, Five-Fingered Root, Water-Dropwort, Water-Hemlock

Oenanthe crocata2 by Aroche (CC BY 2.5)

Full Sun
Moderate watering
Frost Hardy

8a

USDA zone

-12°C

Minimum temperature

Expected size

Height
Spread

1.5m

Max

50cm

Min

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Hemlock Water-Dropwort

A photo of Hemlock Water-Dropwort
A photo of Hemlock Water-Dropwort
A photo of Hemlock Water-Dropwort
A photo of Hemlock Water-Dropwort
A photo of Hemlock Water-Dropwort

Hemlock Water-Dropwort Overview

Oenanthe crocata is a highly poisonous species in the Apiaceae family of carrots, celery and parsley. They are found naturally in damp meadows, marshes or standing water. Flowers are small, white and produced in the summer and foliage is green, divided and feathery in appearance.

Common problems with Hemlock Water-Dropwort

Other uses of Hemlock Water-Dropwort

Wildflower/meadow. Fatal if ingested; regularly cited as the most poisonous plant in Britain.