Columbia Lily

Lilium columbianum

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Liliaceae
Genus:
Lilium
Species:
Lilium columbianum
USDA Symbol:
LICO

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Geophyte
Height:
120 cm
Light Requirements:
Part Shade
Drought Tolerance:
Low
Bloom Months:
may,jun,jul,aug
Bloom Colors:
yellow, orange

Wildlife Benefits

Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

spotted beet webworm moth (Hymenia perspectalis), yellow borer moth (Papaipema cerina)

Reported Fauna Sightings

Hummingbirds: Rufous Hummingbird (Selasphorus rufus)

Garden & Ecology Notes

Wildlife Value:
hummingbirds, butterflies
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Bulbs can resprout after moderate fire; historically found in fire-maintained meadows and open woodlands of the Pacific Northwest.

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 6.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers forested or open woodland areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
30–180 days
Notes:
Seeds require cold stratification and may exhibit hypogeal germination, taking months to produce above-ground growth.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.

Source: Claude AI

ORGHPS Germination Guide: Sow in autumn; keep moist over winter; do not expose to temps below -3°C

Source: Ontario Rock Garden & Hardy Plant Society