Euphorbia Species, Crown of Thorns
Euphorbiagrandifolia

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee)
Genus: Euphorbia (yoo-FOR-bee-uh)
Species: grandifolia (gran-dih-FOH-lee-uh)

Synonym:Elaeophorbia grandifolia

Synonym:Euphorbia leonensis

Category
Tropicals and Tender Perennials

Water Requirements
Average Water Needs; Water regularly; do not overwater

Sun Exposure
Sun to Partial Shade

Foliage
Grown for foliage
Evergreen
Deciduous
Smooth

Foliage Color

Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

Hardiness
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)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow

Danger
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color
Red-Orange

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Mid Winter
Blooms all year
Blooms repeatedly

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

Propagation Methods
From softwood cuttings

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds