General Plant Information (Edit)
Plant Habit: Shrub
Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Plant Height: 24-36 inches
Plant Spread: 20-24 inches
Fruit: Pops open explosively when ripe
Flowers: Showy
Other: In the genus Euphorbia, the flowers are reduced in size and aggregated into a cluster of flowers called a cyathium (plural cyathia). This feature is present in every species of the genus Euphorbia but nowhere else in the plant kingdom.
Flower Color: Orange
Pink
Purple
Red
White
Yellow
Bi-Color
Bloom Size: Under 1"
Flower Time: Year Round
Other: Varies
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Dynamic Accumulator: B (Boron)
Wildlife Attractant: Bees
Hummingbirds
Resistances: Deer Resistant
Drought tolerant
Toxicity: Leaves are poisonous
Roots are poisonous
Other: All parts of Euphorbias can be toxic
Propagation: Other methods: Cuttings: Stem
Cuttings: Tip
Pollinators: Bees
Containers: Suitable in 1 gallon
Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: With thorns/spines/prickles/teeth

Image
Common names
  • Crown of Thorns
  • Siamese Lucky Plant
  • Euphorbia
  • Corona de Cristo
  • Christ Plant

Photo Gallery
Location: Baja California
Date: 2020-08-27
Location: Baja California
Date: 2020-05-07
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2018-02-27
Euphorbia milii - Yellow Crown Of Thorns 006
Location: Longwood Gardens, Kennett Square, Pennsylvania, USA
Date: 2018-12-25
White-flowered form
Location: Arenas Valley, NM My Greenhouse
Date: 2018-04-15
Photo by hlutzow
Location: Winter Springs, FL zone 9b
Date: 2015-06-23
Photo by Hamwild
Location: Baja California
Date: 2018-01-08
Location: Parchur, Andhra Pradesh, India
Date: 2022-03-02
Photo by plantmanager
Location: Baja California
Date: 2012-04-26
Nice reddish color after the rain
Location: Norfolk Botanical Gardens 
Date: March 7 2022
Location: Maine
Date: Feb. 2021
Location: Winter Springs, FL zone 9b
Date: 2017-02-19
Photo by Hamwild
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-09-05
Yellow Crown Of Thorns 003
Location: Summerwinds Nursery, Phoenix Arizona
Date: 2016-05-18
Location: Tampa, FL
Date: 2024-01-04

Date: 2020-03-14
Location: Sebastian, Florida
Date: 2015-05-20
Photo by hlutzow
Location: Parchur, Andhra Pradesh, India
Date: 2/19/2016
Location: My garden
Date: 2018-12-22
Location: Opp, AL  Z8b
Date: 2022-03-31
Propagations showing new growth emerging from below the soil.

Date: 2020-04-29
Location: Opp, AL  Z8b
Date: 2022-08-20
Location: Plano, TX
Date: 2014-01-02
I think I have a dwarf or mini cultivar
Location: Parchur, Andhra Pradesh, India
Date: 2020-08-28
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-03-21
Golden Crown Of Thorns 001
Location:  North latitude    GPS Latitude              16, 1' 40.202" East longitude    GPS Longitude             80, 13' 53.124"
Location: Botanical Garden Meise (Belgium)
Date: 2017-02-27
Location: Conservatory, Hidden Lake Gardens, Michigan
Date: 2018-01-26
Euphorbia milii 'Orange Kaleidoscope' - cultivar not in the datab
Location: Tampa, FL
Date: 2024-01-04
Location: Summer Winds Nursery, Scottsdale, Arizona
Date: 2017-05-03
Location: Opp, AL  Z8b
Date: 2022-03-31
Propagation that survived winter.
Location: Maine
Date: 2023-11-05
Location: Baton Rouge, La. 
Date: 2013-04-02
Location: Parchur, Andhra Pradesh, India
Date: 2020-08-28
Photo by plantcollector
Location: My garden
Date: 2019-01-15
Location: Ingleside. Illinois
Date: 2023-07-03
New growth. Cutting successfully rooted.
Location: Tampa, FL
Date: 2024-01-04
Location: Portland Nursery, Portland Or.
  • Uploaded by Joy

Date: 2011-10-20
Crown of Thorns Blooms
Location: Coastal San Diego County 
Date: 2018-06-30

Date: 2016-10-03
Location: Fall Sale
Location: Winter Springs, FL zone 9b
Date: 2016-10-24
Location: Conservatory, Hidden Lake Gardens, Michigan
Date: 2018-01-26
Euphorbia milii 'Orange Kaleidoscope'  - cultivar not in the data
Location: My living room
Date: December 2019
The monster inside for the winter
Location: Tampa, FL
Date: 2024-01-04
Location: Tampa, FL
Date: 2024-01-04
Location: Tampa, FL
Date: 2024-01-04
Location: Tampa, FL
Date: 2024-01-04
Location: Photo by graftedno1
Photo by SongofJoy
Location: Palm Coast, Florida
Date: 2012-10-22
Location: Sebstian, Florida
Date: 2015-05-20
Location: Coastal San Diego County 
Date: 2018-06-30
Location: Coastal San Diego County 
Date: 2018-06-30
Photo by Hamwild
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-08-17
Golden Crown Of Thorns 005
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-11-03
Crown Of Thorns 004
Location: Botanic Garden La Concepcion Malaga
Date: 2017-02-27
Location: Sarasota, FL
Date: 2015-04-30
At Selby Gardens
Location: Botanical garden of Crete
Date: 2022-05-30
Location: Botanical garden of Crete
Location: In a pot in my front yard, N Watauga TX
Date: 2011-10-11
Brilliant little flowers

Date: 2019-04-17
Location: Parchur, Andhra Pradesh, India
Date: 24mar2016

Date: 2017-09-04
Photo by SongofJoy
Photo by DavidofDeLand
Location: In our garden - Central valley area, CA
Date: 2012-04-25
Euphorbia milii leafless, showing its thorns and new bracts formi
Location: Ellis  
Date: 2017-02-23
Location: Merida, Yucatan, Mexico
Date: August, 2013
in full sun, good drainage, high humidity, lots of water
Location: NYBG 
Date: June 14 22
Location: Sebastian, Florida
Date: 2015-05-20
Location: Green Spring Gardens, Alexandria, Virginia, US
Date: 2019-03-20
Crown of thorns (Euphorbia milii). Known as Christ plant and Chri
Location: San Diego, Ca
Date: 2013-08-16 
Photo taken at Balboa Park, San Diego, Ca

Date: 2017-01-09

Date: 2017-01-09
Location: in my living room, I will put it into a western  facing window.  
Date: 2011-10-20
This plant is about 6-7 years old
Location: Decatur, GA
Date: 2017-09-17
Crown of Thorns blooms
Location: Coastal San Diego County 
Date: 2018-06-30
Photo by Rosegal
Photo by Rosegal
Photo by Rosegal
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-02-04
Crown Of Thorns 008
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-028-04
Crown Of Thorns 009
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-07-28
Golden Crown Of Thorns 003
Location: Mt Penang Botanical Gardens, Kariong, N.S.W., Australia
Date: 2018-05-03
Location: Canoga Park, California
Date: 2011-12-31
Location: Home
Date: 11/19/2010
a young E. milii
Location: Canoga Park, California
Date: 2008-04-16
Location: Orangeburg, SC
Date: 2015-11-29
Crown of thorns, red
Location: Plano, TX
Date: 2013-06-01
Location: Plano, TX
Date: 2013-06-01
Location: Missouri Botanical Garden (MOBOT) - St Louis
Date: 8-9-11
Location: central Illinois-Washington Park Botanical Garden -Springfield, Il.
Date: 2015-12-05
Location: Winter Springs, FL zone 9b
Date: 2016-10-24
Photo by LAGardengirl

Date: 2017-11-04
Location: Balboa Park - San Diego, California                   
Date: 2013-08-16
Location: Elkhart
Date: 2020-02-15
Location: Tellys Greenhouse, Troy, MI
Date: 2012-02-13
Location: Crete
Date: 2022-05-27
Location: In our garden - Central Valley area, CA
Date: 2012-05-16
Very first bloom/bract of my Euphorbia milii
Photo by tarev
Photo by LAGardengirl
Location: Sebastian, Florida
Date: 2015-05-20

Date: 2018-01-22
Location: San Diego, Ca
Date: 2013-08-16

Date: 2017-01-09
Location: At our garden - San Joaquin County, CA
Date: 2013-08-16
Euphorbia millii - all leaves no blooms August 2013
Location: My garden
Date: November 2016
Location: my garden
Location: My garden
Date: November 2016
Location: My garden
Date: November 2016
Location: Decatur, GA
Date: 2017-09-17
Thorns and stems
Photo by Rosegal
Location: Washington Park Botanical Garden - Springfield, Il.
Date: 2016-03-26
Location: Mt Penang Botanical Gardens, Kariong, N.S.W., Australia
Date: 2018-05-03
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-08-17
Golden Crown Of Thorns 004
Location: Plano, TX
Date: 2014-04-25
Location: Middle Tennessee
Date: 2013-01-03
Location: central Illinois
Date: 11-16-12
Location: It is on vacation outside til we bring it in for winter.
Date: 2011-10-02
Yellow  crown of thorns
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2018-03-16
Crown Of Thorns 015
Location: San Diego, California
Date: 2013-08-16
Location: Elkhart
Date: 2020-02-15
Location: Belle Isle Conservatory, Detroit, MI
Date: 2015-07-17
Location: Belle Isle Conservatory, Detroit, MI
Date: 2015-07-17
Location: Tellys Greenhouse, Troy, MI
Date: 2012-02-13
Location: Tellys Greenhouse, Troy, MI
Date: 2012-02-13
Location: Belle Isle Conservatory, Detroit, MI
Date: 2015-07-17
Location: Tellys Greenhouse, Troy, MI
Date: 2012-02-13
Location: Tellys Greenhouse, Troy, MI
Date: 2012-02-13

Date: 2017-09-04
This plant is tagged in:
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Comments:
  • Posted by Dutchlady1 on Sep 29, 2011 2:04 PM concerning plant:
    I am using these as underplanting for my plumeria since they keep their foliage and blooms throughout the winter in my area, whereas the plumeria are bare.
  • Posted by chuck7701 (McKinney, TX (DFW) - Zone 8a) on Mar 22, 2015 11:07 AM concerning plant:
    Propagating this plant is very easy from cuttings or branches broken off main plant. It is a type of succulent, so very hardy. However, any new cuttings or branches broken off NEED TO DRY FOR AT LEAST TWO WEEKS before repotting to harden and seal the pieces. Planting too soon will encourage rot at the cutting site, and you will lose the whole piece.

    When cutting, use newspaper or do the cutting on grass as the white sap is very sticky and hard to remove. Do not know about toxicity of sap, but best to be cautious with sap. Goes dormant in the winter and loses all the leaves when I bring it in to overwinter.
  • Posted by plantladylin (Sebastian, Florida - Zone 10a) on Oct 21, 2011 11:57 AM concerning plant:
    Native to Madagascar, Euphorbia milii is a woody, succulent shrub with dense, spiny stems that scramble and climb and can reach to 6'. Blooms appear all year round but especially during the winter months. The flowers are tiny and inconspicuous but the bracts appear in colors from red, pink, yellow and white. The plant exudes a latex sap that can cause severe dermatitis in some individuals.
  • Posted by Baja_Costero (Baja California - Zone 11b) on Jun 8, 2017 1:52 PM concerning plant:
    Most crown of thorns in cultivation, especially those with extra large flowers, are not the species E. milii but hybrids (for example with E. lophogona). These hybrids can be quite diverse in form and flower color, and some people collect them for this reason.

    Provide good drainage and regular water. These plants, from tropical Madagascar, enjoy more water than most succulents, especially in containers and especially during the summer, but they can be quite drought tolerant, especially in the ground. Easy to start from rooted cuttings. May attract bees and hummingbirds. May branch at the base and/or along stems higher up (depends on the variety). May be self-fertile and self-seeding in the container garden. Many/most crown of thorns flower year round in mild climates.
  • Posted by SongofJoy (Clarksville, TN - Zone 6b) on Oct 26, 2011 12:59 PM concerning plant:
    As with other Euphorbias, E. milii requires a slightly richer soil than do many succulents. They make good houseplants and are not bothered by low humidity. They also grow well under artificial lights.
Plant Events from our members
Suga On November 5, 2016 Obtained plant
Ordered from Logee's and it is supposed to be a dwarf 🌱 r
antsinmypants On July 3, 2023 Cuttings took
New growth emerging.
antsinmypants On May 15, 2023 Cuttings stuck
antsinmypants On May 14, 2023 Miscellaneous Event
Obtained cutting.
MotherMycelium On February 2, 2021 Plant Ended (Removed, Died, Discarded, etc)
Rot got him
piksihk On September 13, 2023 Miscellaneous Event
It has rot on middle of stem; cut the top part off.
Will try rooting it.
piksihk On September 12, 2023 Bloomed
First blooms- yellow color
piksihk On May 6, 2023 Obtained plant
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
crown of thorns by pa2nc Sep 9, 2014 5:11 PM 5
Question by cherryb1ossoms Oct 13, 2015 11:17 PM 3
Hummingbirds and crown of thorns by MySecretIslandGarden Jun 4, 2022 3:30 PM 1

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