Euphorbia Species
Euphorbiahorwoodii

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee)
Genus: Euphorbia (yoo-FOR-bee-uh)
Species: horwoodii (hor-WOOD-ee-eye)

Category
Cactus and Succulents

Water Requirements

Sun Exposure
Full Sun

Foliage

Foliage Color

Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)

Spacing
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)

Hardiness
USDA Zone 9b: to -3.8 °C (25 °F)

Where to Grow

Danger
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color

Bloom Characteristics

Bloom Size

Bloom Time
Late Spring/Early Summer
Late Summer/Early Fall

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
From seed; direct sow after last frost
By grafting

Seed Collecting
Bag seedheads to capture ripening seed