Crown of Thorns, Christ Plant, Siamese Lucky Plant 'Christusdorn'

Euphorbia milii

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee) (Info)
Genus: Euphorbia (yoo-FOR-bee-uh) (Info)
Species: milii (MIL-ee-eye) (Info)
Cultivar: Christusdorn


Cactus and Succulents

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


under 6 in. (15 cm)

6-12 in. (15-30 cm)


6-9 in. (15-22 cm)


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:

Sun to Partial Shade


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 Time:

Late Spring/Early Summer

Mid Summer



Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

From semi-hardwood cuttings

From seed; direct sow after last frost

By grafting

Seed Collecting:

Unknown - Tell us


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

San Diego, California

Chalmette, Louisiana

Picayune, Mississippi

Gardeners' Notes:

No details have been posted.