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A picture of a Trout lily

Trout lily

Erythronium spp.

Also known as

Dog-tooth violet, Adder's tongue

Erythronium caucasicum Woronow by SKas (CC BY-SA 4.0)

Partial Shade
Moderate watering
Frost Hardy


RHS hardiness


Minimum temperature

Expected size







  • spring
  • summer
  • autumn
  • winter

More images of Trout lily

A photo of Trout lily
A photo of Trout lily
A photo of Trout lily
A photo of Trout lily
A photo of Trout lily

Trout lily Overview

This genus contains around 30 hardy, tuberous perennials grown mainly for their attractive, nodding flowers with backwards curving petals. Also grown for their foliage, which may be attractively mottled with bronze. They are also known by the names adder’s tongue, fawn lily, trout lily and dog’s-tooth violet in different locations and are close relatives of the genus Tulipa, which contains tulips. Growth is in a clumping fashion and typical flower colours are pink, white or yellow. Many cultivars and hybrids have been developed from this genus for use in gardens as ornamental plants.

Common problems with Trout lily

How to propagate Trout lily


Propagate by seed in autumn.


Some species increase by offsets, which should be divided in late summers.

Other uses of Trout lily

Grown for their pendant flowers and in some cases attractively mottled leaves.

Spring Flowering Bulbs

Flowering in spring these bulbs give a beautiful display.

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Spring Bulbs for Autumn Planting

Plant out these flowering bulbs in autumn to enjoy their performance next year.

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