Euphorbia Species, Martin's Spurge, Wood Spurge

Euphorbia x martini

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee) (Info)
Genus: Euphorbia (yoo-FOR-bee-uh) (Info)
Species: x martini
Synonym:Euphorbia cornubiensis
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Cactus and Succulents

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Sun to Partial Shade


Grown for foliage


Foliage Color:

Unknown - Tell us


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)


USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

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:

Grow outdoors year-round in hardiness zone

Can be grown as an annual


Parts of plant are poisonous if ingested

Bloom Color:

Chartreuse (yellow-green)

Bloom Characteristics:

Flowers are good for cutting

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

Bloom Size:

Unknown - Tell us

Bloom Time:

Late Winter/Early Spring

Mid Spring

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:

By dividing the rootball

From herbaceous stem cuttings

Seed Collecting:

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


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

San Jose, California

Gainesville, Georgia

Catonsville, Maryland

Cockeysville, Maryland

Dallas, Oregon

Portland, Oregon

Wilkes Barre, Pennsylvania

Austin, Texas

Lexington, Virginia

Bellevue, Washington

Clinton, Washington

Kennewick, Washington

Vancouver, Washington

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Gardeners' Notes:


On Jun 3, 2016, coriaceous from ROSLINDALE, MA wrote:

According to the RHS, this is perennial is a hybrid: Euphorbia amygdaloides var robbiae x E. characias.

It does not get much over 18" tall.

Its varying cultivars are widely used as seasonal container plants here in Boston, especially the variegated 'Ascot Rainbow'. It isn't really hardy in Z6a, though when planted in the ground it sometimes winters over. In the market, it has largely displaced E. amygdaloides rubra/purpurea, which is significantly hardier here.


On Jan 20, 2014, jv123 from Chehalis, WA (Zone 8b) wrote:

This particular Euphorbia grows well in the Vancouver/Portland area. It stays evergreen, and has really nice red color in the otherwise generic yellowish green inflorescence. I have noticed that aphids love to munch on this part of the plant. After a nice early season bloom, I usually cut off the flowering stems and enjoy the dark leaves while my other plants come into bloom.


On May 29, 2011, Marie260 from Kennewick, WA wrote:

Euphorbia martinii ascot rainbow planted last year and is flowering, but leaves did not survive the winter well. Not much in terms of new stems coming up. Will see if it survives the season.


On Nov 15, 2007, rcn48 from Lexington, VA (Zone 6a) wrote:

Another Euphorbia which has proven to be a real beauty in the gardens. Vigorous, almost shrubby habit and evergreen! Great color for the winter garden with glowing red tips on the foliage and unique red-eyed bracts (flowers) in the spring. Appreciates a pruning after flowering in spring but not necessary. The new foliage which forms at the crown quickly covers the "naked legs" of last year's growth. Caution: as with all Euphorbias, avoid skin contact with the milky sap when pruning.


On Mar 19, 2005, palmbob from Acton, CA (Zone 8b) wrote:

small shrubby spurge with reddish to pink stems and bright yellow-green flowers in late winter