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Tricyrtis, Toad Lily 'Tojen'

Tricyrtis hirta

Family: Liliaceae (lil-ee-AY-see-ee) (Info)
Genus: Tricyrtis (try-SER-tis) (Info)
Species: hirta (HER-tuh) (Info)
Cultivar: Tojen
Additional cultivar information:(aka Togen)
View this plant in a garden



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Grow outdoors year-round


24-36 in. (60-90 cm)


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Light Shade

Partial to Full Shade


All parts of plant are poisonous if ingested

Bloom Color:


White/Near White

Bloom Time:

Late Summer/Early Fall

Mid Fall



Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:

San Francisco, California

San Leandro, California

Machesney Park, Illinois

Wyanet, Illinois

Mandeville, Louisiana

Shelburne Falls, Massachusetts

Dearborn Heights, Michigan

Mount Clemens, Michigan

New Hartford, New York

Concord, North Carolina

Raleigh, North Carolina

Dublin, Ohio

Haviland, Ohio

Columbia, South Carolina

Knoxville, Tennessee

Lexington, Virginia

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Gardeners' Notes:


On Aug 26, 2005, rcn48 from Lexington, VA (Zone 6a) wrote:

Very nice Tricyrtis. Vigorous grower with larger leaves than most of the other Tricyrtis we have in our gardens and love the flowers.


On Mar 25, 2005, sanity101 from Dublin, OH (Zone 5b) wrote:

Nice blooms in autumn shade when not much else is flowering. Small, but pretty. It's spread reliably for three years since planting and always turns out flowers.

The leaves tend to get 'rusty spots' on them by fall, but it doesn't seem to hinder the plant's vigor, so I haven't bothered with diagnosis or treatment.

Got eaten to the ground by slugs this spring and has not set out more leaves.


On Aug 18, 2002, Baa wrote:

A beautiful hybrid cultivar.

It has a more lax habit that T. hirta which means the plant is slighlty shorter, although the stems are at least as long. It usually has unspotted leaves and clear lavender or lavender blushed flowers.

While all the books say this is a shade plant, it has grown in full sun here for 3 years. The only difference is the plants don't seem to reach full height in sun.

Give this plant some space as it will multiply where happy and a large clump always looks much better than a few single plants.

In regions where winter is very cold, give them a warmer spot and winter mulch if there is no snow cover.

Slugs and snails can damage young growth but it usually recovers quite quickly. Vine weevils ca... read more