Euphorbia, Crown of Thorns, Christ Plant, Siamese Lucky Plant 'Brushfire'

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: Brushfire


Tropicals and Tender Perennials

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

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

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


6-12 in. (15-30 cm)

12-18 in. (30-45 cm)


12-15 in. (30-38 cm)

15-18 in. (38-45 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)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Full Sun

Sun to Partial Shade


Parts of plant are poisonous if ingested

Bloom Color:



Bloom Time:

Blooms all year

Blooms repeatedly


Grown for foliage


Other details:

Unknown - Tell us

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:

From softwood cuttings

Allow cut surface to callous over before planting

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


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

Jones, Alabama

, British Columbia

Elk Grove, California

Oceanside, California

Fort Collins, Colorado

Fort Myers, Florida

Gainesville, Florida

Lutz, Florida

Marco Island, Florida

Navarre, Florida

New Smyrna Beach, Florida

Orlando, Florida

Palm Harbor, Florida

Rockledge, Florida

Sarasota, Florida

Sun City Center, Florida

West Palm Beach, Florida

Brooklyn, New York

Swisshome, Oregon

West Linn, Oregon

Warren Center, Pennsylvania

Caguas, Puerto Rico

Middleton, Tennessee

Corpus Christi, Texas

Fort Worth, Texas

Houston, Texas

San Antonio, Texas (2 reports)

Reston, Virginia

show all

Gardeners' Notes:


On Apr 17, 2006, catpfaus from Fort Collins, CO wrote:

This plant grows well indoors in a sunny location. Very easy to care for even when neglected. My in-laws have given everyone they know cuttings. Everyone says that this is one plant that even those with "black" thumbs can grow. We do live in Colorado so I haven't yet tried to grow outdoors year round but do believe it might be able to handle mild winters outside.


On Apr 4, 2004, secnarfremlap from Orlando, FL wrote:

We have grown "Crown of Thorns" almost continuously in pots in our Orlando garden; we prune heavily every 3-4 years as the plant gets too high/wide for the pots. When we moved to new pots, after about 10 years, found that the soil/earth had almost disappeared and the roots were all that remained. We also fertilized 3-4 times a year. We have an automatic sprinkling system for the yard/garden, which seemed to supply sufficient water.

The pots originally were set around a fountain on concrete circles in full sun when we first moved to Orlando; with passage of time, trees growing, etc. plants still grew and flowered in partial shade.

However, in the last few years (plants now approx. 18 yrs. old) the shade became too much and the flowers started to disappear. When... read more