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Crown of Thorns, Christ Plant, Siamese Lucky Plant
Euphorbia x lomi 'Tropical Fiesta'

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee) (Info)
Genus: Euphorbia (yoo-FOR-bee-uh) (Info)
Species: x lomi
Cultivar: Tropical Fiesta


Cactus and Succulents


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


Unknown - Tell us


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:

Sun to Partial Shade

Light 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:

Pale Yellow

Bloom Time:

Mid Spring

Late Spring/Early Summer


Unknown - Tell us

Other details:

This plant is suitable for growing indoors

Suitable for growing in containers

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 semi-hardwood cuttings

Seed Collecting:

Unknown - Tell us


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

Clayton, California

Sarasota, Florida

Forsyth, Georgia

West Orange, New Jersey

Mount Pleasant, South Carolina

Brenham, Texas

Santa Fe, Texas

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Gardeners' Notes:


On Sep 5, 2006, bbinnj from West Orange, NJ (Zone 6a) wrote:

Plant bloomed twice for me since I received it as a gift, once in mid July, and again late August to early September. I was advised to give it plant food (30-15-15 or 20-20-20) with every watering through the summer, did that and misted it too during the extreme heat. It needs to be pruned now, it is quite tall. I had it in part shade- filtered sunlight outside on my patio.


On Jan 15, 2005, GardenFairey from Forsyth, GA (Zone 8a) wrote:

One of my favorites