Species Lilium, Humboldt's Lily
Liliumhumboldtii

Family: Liliaceae (lil-ee-AY-see-ee)
Genus: Lilium (LIL-ee-um)
Species: humboldtii (hum-BOLD-tee-eye)

Synonym:Lilium bloomerianum

Synonym:Lilium californicum

Synonym:Lilium puberulum

Synonym:Lilium robinsonianum

Height

24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing

6-9 in. (15-22 cm)

Hardiness

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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)

Sun Exposure

Light Shade

Bloom Color

Red-Orange
Gold (yellow-orange)

Bloom Time

Mid Summer

Foliage

Herbaceous

Other details

Unknown

Propagation Methods

By dividing the bulb's scales
From seed; stratify if sowing indoors

Seed Collecting

Unknown

Soil pH requirements

5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Non-patented

Division

9 - Species

Flower Shape

Recurved

Flower Habit

(c) Down-facing

Bloom Size

6" to 12" (151 mm to 300 mm)

Color Pattern

Spotted

Foliage Color

Unknown

Bloom Characteristics

Flowers are fragrant

Water Requirements

Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Where to Grow

Unknown