Euphorbia Species, Moroccan Mound, Official Spurge, Resin Spurge

Euphorbia resinifera

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee) (Info)
Genus: Euphorbia (yoo-FOR-bee-uh) (Info)
Species: resinifera (res-in-EE-fer-uh) (Info)
View this plant in a garden


Cactus and Succulents

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Sun Exposure:

Sun to Partial Shade



Foliage Color:

Unknown - Tell us


6-12 in. (15-30 cm)

12-18 in. (30-45 cm)


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

36-48 in. (90-120 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)

Where to Grow:

Can be grown as an annual


All parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Bright Yellow

Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

Bloom Time:

Late Spring/Early Summer

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:


Propagation Methods:

From herbaceous stem cuttings

From seed; sow indoors before last frost

Seed Collecting:

Unknown - Tell us


This plant is said to grow outdoors in the following regions:

Fountain Hills, Arizona

Green Valley, Arizona

Phoenix, Arizona(2 reports)

Scottsdale, Arizona(4 reports)

Tucson, Arizona

Carlsbad, California

Hayward, California

Hesperia, California

Reseda, California

San Diego, California

San Marino, California

Thousand Oaks, California

Fort Myers, Florida

Austin, Texas

show all

Gardeners' Notes:


On Jul 30, 2013, bobflush from Hillegom,
Netherlands wrote:

Resin spurge is the hottest chemical, called resiniferatoxina, found in Morocco. Resiniferatoxin has a Scoville rating a thousand times hotter than pure capsaicin from hot peppers, or over 16 billion Scoville units!


On Aug 4, 2012, GermanStar from Fountain Hills, AZ (Zone 9b) wrote:

Resin Spurge? Who calls Moroccan Mound, Resin Spurge? Hahaha.


On Jul 28, 2010, acactus from Silverado, CA wrote:

This has proven to be a very cold hardy succulent Euphorbia. My plant has been in the ground 15 years & has survived temps down to 15 degrees with no problems. It has even been covered in snow! My garden is in Hesperia, CA at 3500 feet zone 8.


On Jun 21, 2009, BayAreaTropics from Hayward, CA wrote:

Mine is in its second year and has just been potted up in size. No problems with our rainy cool winters in a container. The color seems to change with lighting..sometimes a nice aquagreen with red spines. I did notice that even though it had completely covered a 6" pot in stems,when I knocked it out of it's pot..seemed to have a very fine root system. Like what you would find with fat plants that grow on rocks in habitat...none of that finger roots spilling out of drainholes like many succulents.


On Aug 28, 2004, TucsonJen from Tucson, AZ (Zone 9a) wrote:

I like my first Moroccan Mound so much that I planted another today. It's great on it's own but groups well with my other succulents - it's structure is an interesting contrast.

It also ranks high in that the critters won't eat it!


On Feb 6, 2004, albleroy from Wavre/ greenhous +/- 2500 species, IA wrote:

The Euphorbia resinifera and the Euphorbia echinus are both endemic plants of Marocco. The E resinifera is more in the surroundings of Maracesch and the echinus is more in the surroundings of Agadir and Tiznit.
Albert Leroy Belgium


On Jan 30, 2004, palmbob from Acton, CA (Zone 8b) wrote:

Though in some parts of the world (probably S Africa) this small rapidly suckering plant is considered a toxic weed. But in So Cal it just is a nice landscaping succulent, making an attractive colony of short, blue-green, 4 sided hardy little columns. I have seen some plantings where this plant covered many square yards of yard. Very commonly sold at garden outlet centers and is one of the easiest and carefree Euphorbias to grow in both pots and in the ground in southern California.