Erythronium Species, Adder's-Tongue, Dogtooth Violet, Trout Lily, Yellow Trout-Lily
Erythroniumamericanum

Family: Liliaceae (lil-ee-AY-see-ee)
Genus: Erythronium (er-ih-THROH-nee-um)
Species: americanum (a-mer-ih-KAY-num)

Category
Bulbs
Perennials

Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Sun Exposure
Light Shade
Partial to Full Shade

Foliage
Herbaceous
Textured
Veined

Foliage Color

Height
under 6 in. (15 cm)

Spacing
3-6 in. (7-15 cm)

Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
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)

Where to Grow

Danger
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color
Bright Yellow

Bloom Characteristics

Bloom Size

Bloom Time
Mid Spring
Late Spring/Early Summer

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

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

Seed Collecting