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PlantFiles: Humboldt's Lily
Lilium humboldtii

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

Synonym:Lilium bloomerianum
Synonym:Lilium humboldtii var. bloomerianum
Synonym:Lilium humboldtii subsp. humboldtii

» View all varieties of Lilies

9 members have or want this plant for trade.

9 - Species

Flower Habit:
(c) Down-facing

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

6-9 in. (15-22 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)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Light Shade

Bloom Color:
Gold (Yellow-Orange)

Bloom Time:
Mid Summer

Flower Shape:

Bloom Size:
6" to 12" (151 mm to 300 mm)

Color Pattern:


Other details:
Flowers are fragrant
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:

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

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By Kelli
Thumbnail #1 of Lilium humboldtii by Kelli

By Kelli
Thumbnail #2 of Lilium humboldtii by Kelli

By Kelli
Thumbnail #3 of Lilium humboldtii by Kelli

By Kelli
Thumbnail #4 of Lilium humboldtii by Kelli

By Kelli
Thumbnail #5 of Lilium humboldtii by Kelli

By JnR05
Thumbnail #6 of Lilium humboldtii by JnR05

By EAVillager
Thumbnail #7 of Lilium humboldtii by EAVillager

There are a total of 8 photos.
Click here to view them all!


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive FilmLabRat On Sep 4, 2014, FilmLabRat from Colfax, CA wrote:

I've found this plant growing in three places near my home in Colfax, CA. The reason that it is so rarely found is that it is adored by deer. The places I found it were somewhat difficult for the deer to access. In order to see the blooms on the plant on our property, I had to spray it with deer repellent once a week until it bloomed. Spectacular.

Positive wolfforce58 On Aug 15, 2011, wolfforce58 from Lake of the Pines, CA wrote:

My friend and I recently discovered that this plant grows near our home town wildly. It may also be found in select parts of Grass Valley, California, near the Bear River. Placer County seems to have some good habitat for it to grow.


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

Colfax, California
Grass Valley, California
Lake Nacimiento, California
Malibu, California
Atlanta, Georgia
Butler, Pennsylvania

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