Cushion Spurge
Euphorbia polychroma 'Bonfire'

Family: Euphorbiaceae (yoo-for-bee-AY-see-ee) (Info)
Genus: Euphorbia (yoo-FOR-bee-uh) (Info)
Species: polychroma (pol-ee-KROH-muh) (Info)
Cultivar: Bonfire
Additional cultivar information:(PP18585, aka Bon Fire)
Hybridized by Faria
Registered or introduced: 2005
View this plant in a garden

Category:

Perennials

Height:

12-18 in. (30-45 cm)

Spacing:

18-24 in. (45-60 cm)

Hardiness:

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

All parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Pale Yellow

Bloom Time:

Late Spring/Early Summer

Foliage:

Herbaceous

Burgundy

Bronze-Green

Other details:

Average Water Needs; Water regularly; do not overwater

This plant is resistant to deer

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:

Patented

Propagation Methods:

From herbaceous stem cuttings

Seed Collecting:

Bag seedheads to capture ripening seed

Properly cleaned, seed can be successfully stored

Regional

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

Pelham, Alabama

San Anselmo, California

Santa Clara, California

Machesney Park, Illinois

Fort Wayne, Indiana

Iowa City, Iowa

Taylorsville, Kentucky

Dracut, Massachusetts

Allen Park, Michigan

Ludington, Michigan

Park Rapids, Minnesota

Eureka, Missouri

Litchfield, New Hampshire

Buffalo, New York

Plattsburgh, New York

Riverhead, New York

Akron, Ohio

Doylestown, Ohio

Geneva, Ohio

Ravenna, Ohio

Salem, Oregon

Indiana, Pennsylvania

Norristown, Pennsylvania

Provo, Utah

Annandale, Virginia

Lexington, Virginia

Stafford, Virginia

Chimacum, Washington

Seattle, Washington

Madison, Wisconsin (2 reports)

show all

Gardeners' Notes:

6
positives
1
neutral
0
negatives
RatingContent
Positive

On Jun 9, 2014, JenDion from Litchfield, NH (Zone 5b) wrote:

This plant is amazing. It starts out plum/burgundy in the spring, flowers chartreuse-yellow that almost complete covers the plant, then when you cut it back (so it doesn't flop open after flowering), it has blue-green lower leaves (I cut mine back to 6" or so). Fantastic color plant.

Positive

On May 17, 2014, iowhen from Iowa City, IA (Zone 5a) wrote:

Outstanding colors. We came close to a frost last night, and it doesn't seem to be bothered.

Positive

On Dec 7, 2012, northgrass from West Chazy, NY (Zone 4b) wrote:

The color was not as bright as suggested on the tag but still very nice. It does not reseed and stays compact and neat unlike Chameleon, a nicer plant all around in my opinion.

Positive

On May 26, 2011, gardeningfun from Harpersfield, OH (Zone 5a) wrote:

I had this plant in partial to mostly shade and it didn't do well at all. It looked awful. Someone said to move it into full sun and it has done fantastic! Love it. It does well in my heavy clay soil in zone 5b. It has multiplied in the year it's been in it's new place.

Positive

On Apr 10, 2011, diamond9192002 from (Anita) Fort Wayne, IN (Zone 6a) wrote:

The color of this plant is more stunning. I love this plant but it doesn't like being moved. I thought I had killed it after moving it it. It looked as if it was dead for a long time but it did come back. I have it planted in full sun.

Positive

On Apr 8, 2011, floraphiliac from Ludington, MI (Zone 6a) wrote:

I bought 2 of these last summer and planted them in 2 different locations, one full sun and the other part sun. A month later they both started to lose foliage and by late summer both plants appeared to be dead. I left them alone and am hoping they somehow revive this spring but so far I haven't seen any new growth. I have 5 other types of euphorbia that are doing fine. Zone 6a.

Update spring 2012:
Bought two more of these early last year and planted them. They survived the winter and snow this time and are blooming now in early May. Perhaps the trick was planting them earlier in the season than I had done before. Although they are still rather small they are so cute with the burgundy colored foliage and bright yellow "flowers" that I changed my rating from neutral to... read more

Neutral

On Aug 23, 2010, playwithdirt from Stillwater, MN wrote:

I planted 6 of the Cushion spurge in my front garden last fall. They came up and were beautiful this spring. I enjoyed the leaf color and the yellow blooms. A couple of weeks ago the plants just started dieing off for no discernible reason. They grew quite nicely all summer and just started dieing, one after the other. Not sure what is going on. I would definately note a postitive experience if I weren't losing all of them. They are not going all at one time, they are defiinatley going just one at a time. Any suggestions?