Euphorbia, Martin's Spurge, Wood Spurge 'Ascot Rainbow'

Euphorbia x martini

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee) (Info)
Genus: Euphorbia (yoo-FOR-bee-uh) (Info)
Species: x martini
Cultivar: Ascot Rainbow
Additional cultivar information:(PP21401)
Hybridized by Glenn
Registered or introduced: 2009
View this plant in a garden



Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Sun to Partial Shade


Grown for foliage


Good Fall Color


Provides Winter Interest

Foliage Color:





18-24 in. (45-60 cm)


18-24 in. (45-60 cm)


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)

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:



Bloom Characteristics:

Flowers are good for cutting

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

Bloom Size:

Unknown - Tell us

Bloom Time:

Mid Summer

Late Summer/Early Fall

Mid Fall

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:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us


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

Anniston, Alabama

Alamo, California

San Francisco, California

San Jose, California

San Leandro, California

Buford, Georgia

Chicago, Illinois

Parkton, Maryland

Roslindale, Massachusetts(2 reports)

Ludington, Michigan

Albuquerque, New Mexico

Manorville, New York

Chapel Hill, North Carolina

Raleigh, North Carolina

Wilmington, North Carolina

Winston Salem, North Carolina

Clyde, Ohio

Haviland, Ohio

Pittsburgh, Pennsylvania

Columbia, South Carolina

Clarksville, Tennessee

Franklin, Tennessee

Knoxville, Tennessee

Nashville, Tennessee

Dallas, Texas

Palestine, Texas

South Jordan, Utah

Lexington, Virginia

Newport News, Virginia

Round Hill, Virginia

show all

Gardeners' Notes:


On Aug 23, 2020, Sakley from San Francisco, CA wrote:

I absolutely love this plant but it Is not doing too well.
I bought it from the nursery in June and just repotted it (mid August) - I'm trying to grow it as an indoor plant Unfortunately the leaves keep falling off and it is very very leggy. I do see a tiny new one coming out of the soil so that's promise. It's currently sitting in a West-facing window iny San Francisco apartment.
Would love some advice on making this baby happy!


On Jun 25, 2014, flowergirl70 from Stayner, ON (Zone 5b) wrote:

Great foliage plant. I planted in urns last summer in my Ontario garden and then moved it into the garden on the west side of my house for the winter. It had lots of snow cover. It has come back beautifully and is flowering.
Awesome plant!


On Jun 2, 2013, coriaceous from ROSLINDALE, MA wrote:

This is primarily sold here for use as a container plant, but it can also grow here as a short-lived perennial.

I've had my doubts about the hardiness of E. x martinii in my climate, but this cultivar has done well in deep shade for at least 4 years in Southborough, MA, at the border between USDA zones 5/6. Foliage is semi-evergreen, and the chartreuse variegation is handsome.

Produces frequent reversions to the non-variegated form---cut non-variegated stems off at the base promptly if you don't want them to take over, as they're more vigorous than the variegated form.

Bloom begins in May. The flower bracts are showy and last for months. Cut flowering stems back to the base as the flowers fade. Do not cut new stems back, as they will flower the ... read more


On Mar 10, 2013, 2255 from Franklin, TN wrote:

Middle Tennessee Zone 7b. Planted 2 large plants in summer and one smaller in fall...all in fairly sunny spots. Almost care free and not in need of extra water in our dry summers. Their rosy hue over the winter has been fabulous. Question: One is very tall, 20 inches, and a bit leggy. Can it be pruned back now? (I realize I need to wear gloves and be careful of the poisonous sap.) And if so, how far. All three are beginning to have new growth at the top.


On May 21, 2012, HouseofFlowers from ROSLINDALE, MA wrote:

I originally purchased two of these (I am in zone 6a). One died after the first year. I assumed it was because it needed more sun. The 2nd one started looking bad, so I relocated it to a spot that had a little more sun and it began thriving. After the winter this season, it looked pretty bad. Thankfully in the spring, it grew all new stems & foliage beautifully.


On May 7, 2012, floraphiliac from Ludington, MI (Zone 6a) wrote:

Over-wintered here in zone 6a with no problems. It had beautiful pinkish reddish highlights over the winter and handled snow cover without any problems. It's been blooming very nicely now for a few weeks. I'm hoping it will last for a few years and not disappear as some other euphorbias have done in the past.


On Jul 6, 2011, greyandamy from Pittsburgh, PA wrote:

I LOVE the appearance of this plant. I have 3 in pots. I'm just confused about hardiness, as I see everything from zone 5 ( I wouldn't risk), lots of zone 6's (including from where I purchased) and zone 7 (as of on this site). Other than that, unknowing if it's safe to plant in ground here in zone 6, it's gorgeous... like a daphne, though foolproof to grow.


On Sep 29, 2010, avidreader111 from Fair Lawn, NJ wrote:

Growing in every other yard in Wallingford, Seattle. Bought a small plant from directgardening. It is developing beautifully in small pot. Will plant soon here, in North NJ. Ordered three more.


On May 28, 2010, bmoody13 from Columbia, SC wrote:

This plant grows very well in Columbia, SC but the word of caution is SO true. I did not know that the milkly juice from the plant was poisonous and I managed to get it in my eye while cutting the plant back. The chemical burn to my eye was significant!
Be VERY careful when handling this plant!


On Oct 27, 2009, Kell from (Zone 9b) wrote:

This colorful compact but spreading euphorbia debuted from Australia in the 2009/2010 season. Both the flowers and the foliage are variegated. The flowers are a combination of cream and lime green while the foliage is cream with green/blue with the reverse more pink/red. In the cooler months the foliage flushes pink/red even more.

Tolerates lots of heat and dry conditions.