Photo by Melody

PlantFiles: Euphorbia
Euphorbia 'William Denton'

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee) (Info)
Genus: Euphorbia (yoo-FOR-bee-uh) (Info)
Cultivar: William Denton

3 members have or want this plant for trade.

Cactus and Succulents

6-12 in. (15-30 cm)

9-12 in. (22-30 cm)
12-15 in. (30-38 cm)

USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade

All parts of plant are poisonous if ingested

Bloom Color:
Bright Yellow

Bloom Time:
Mid Winter


Other details:
Drought-tolerant; suitable for xeriscaping
Suitable for growing in containers

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:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By Happenstance
Thumbnail #1 of Euphorbia  by Happenstance

By Happenstance
Thumbnail #2 of Euphorbia  by Happenstance

By palmbob
Thumbnail #3 of Euphorbia  by palmbob

By palmbob
Thumbnail #4 of Euphorbia  by palmbob


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive palmbob On Dec 26, 2006, palmbob from Acton, CA (Zone 8b) wrote:

Looks to me like some hybrid of E obesa and who-knows what. But it's not that uncommon a plant in cultivation. Makes great potted plant, suckering nicely. Easy to rot if overwatered in high heat times. Plants in full sun turn purply. Easy plant to snap off from main plant and just stick in potting soil and have root. No sharp spines and doesn't 'bleed' easily unless broken.

Positive Happenstance On Sep 14, 2003, Happenstance from Northern California, CA wrote:

Hybridized by William Denton, greenhouse grown.


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

Clayton, California
Reseda, California

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