Euphorbia Species, Gopher Spurge, Caper Spurge, Mole Plant, Myrtle Spurge

Euphorbialathyris

Family
Euphorbiaceae (yoo-for-bee-AY-see-ee)
Genus
Euphorbia (yoo-FOR-bee-uh)
Species
lathyris (lay-THY-ris)
Synonym
Epurga lathyris
Euphorbia decussata
Euphorbia spongiosa
Euphorbion lathyrum
Tithymalus lathyris
Sun Exposure
Full Sun
Foliage
Herbaceous
Smooth
Height
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing
6-9 in. (15-22 cm)
Hardiness
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)
USDA Zone 10a: to -1.1 °C (30 °F)
Danger
Seed is poisonous if ingested
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Green
Bloom Time
Blooms repeatedly
Other Details
Category
Annuals
Biennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Blue-Green
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
Bloom Size
Other details
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
Non-patented
Propagation Methods
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

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

Goodyear, Arizona

Tucson, Arizona

Arroyo Grande, California

Clayton, California

El Cajon, California

Fairfield, California

Granite Hills, California

Harbison Canyon, California

Pinole, California

Rancho San Diego, California

Redding, California

San Rafael, California

Thousand Oaks, California

Weston, Colorado

Wethersfield, Connecticut

Post Falls, Idaho

Ewing, Kentucky

Cumberland, Maryland

Mason, Michigan

Royal Oak, Michigan

Las Vegas, Nevada

Mount Laurel, New Jersey

Neptune, New Jersey

Princeton Junction, New Jersey

Hilton, New York

Millbrook, New York

Pawling, New York

Charlotte, North Carolina

Cincinnati, Ohio

Fairfield, Ohio

Yukon, Oklahoma

Ashland, Oregon

Cloverdale, Oregon

Eugene, Oregon

Gold Hill, Oregon

Portland, Oregon(3 reports)

Salem, Oregon

South Beach, Oregon

Wilkes Barre, Pennsylvania

Exeter, Rhode Island

Conway, South Carolina

Toone, Tennessee

Salt Lake City, Utah

Virgin, Utah

Lexington, Virginia

Bellingham, Washington

Clarkston, Washington

Clarkston Heights-Vineland, Washington

Cusick, Washington

Kalama, Washington

Monroe, Washington

Stevenson, Washington

Tenino, Washington

Waterville, Washington

West Clarkston-Highland, Washington

Woods Creek, Washington

Bunker Hill, West Virginia

Great Cacapon, West Virginia

Liberty, West Virginia

show all

Featured Videos

Gardener's Notes:

11
positives
3
neutrals
5
negatives
Sort By:
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U
Salt Lake City, UT (Zone 7b) | May 2022 | positive

I was very curious to what the evergreen perennial coming up in my garden here in Salt Lake City, Utah (zone 7b) was, but I figured out i...Read More

D
Prescott, AZ (Zone 7b) | November 2016 | positive

I guess I'm fortunate that I don't seem to be allergic to this plant. I have had them in my garden for a decade and never had any troubl...Read More

M
Pawling, NY | May 2016 | positive

In Pawling NY, this plant works like magic to deter voles. Yes, the sap is toxic, and it self sows abundantly, and it looks ragged in it...Read More

D
Portland, OR | December 2015 | neutral

I noticed this plant voluntarily growing in my yard in Portland Oregon this summer, it seems to grow quite well , this is it's first yea...Read More

G
Seattle, WA | August 2015 | negative

We thought this was an interesting wild addition to our permaculture-style garden, until I got one small drop of its white milky liquid o...Read More

B
San Diego, CA | July 2013 | positive

Over the last couple of years my gopher plants start off real good! Grow really full and healthy but after about 5 months they seem to die!! Help!!!

V
Las Vegas, NV | May 2012 | positive

Should have done my due diligence on the plant before adding as a key feature to my yard due to the allergic reaction to the sap. That sa...Read More

A
A
Tucson, AZ | May 2012 | negative

While this is a spectacular blooming plant with large, chartreuse flowers in early spring, BEWARE OF THE SAP!! I had a allergic reaction...Read More

K
Post Falls, ID | May 2010 | negative

pull that plant out!
nasty, considered a noxious weed here in the Pac NW, takes over everything, and yes the sap is dangerous. Cho...Read More

C
Goodyear, AZ | October 2009 | neutral

I'm in GoodYear, Az. We do have gopher problems and this plant has not helped. It's probably because they haven't eaten it. It's a nice...Read More

E
Tenino, WA | October 2008 | negative

I, too, had an experience with this poisonous plant.

After a gopher or mole decided our barked walk-way was prime territ...Read More

H
Portland, OR | June 2008 | negative

Be very careful! The note about the sap being toxic is not an understatement. The story of my experience with this plant is below.
...Read More

J
Cusick, WA | October 2005 | positive

This plant (gopher spurge) has been growing in my vegetable garden for years (15-20). Grows like a weed, self propagating, rototill in th...Read More

M
M
Hanover Twp., PA (Zone 6a) | January 2005 | positive

I grow this plant just because it stays green, zone 5, in our winters. It is just one more thing to look at that is not gray or brown.

S
| March 2004 | positive

After living with this plant in my yard for six years in Portland, OR, I can honestly say that I never had trouble with moles. To be fair...Read More

D
| December 2003 | positive

I first noticed gopher spurge growing on a road embankment near my house. The red stem and the white-veined leaves looked attractive so I...Read More

P
Acton, CA (Zone 8b) | November 2003 | neutral

I have grown this plant for about 6 years now and its effecttiveness in keeping gophers away has been pretty poor. Though I haven't actu...Read More

R
| November 2003 | positive

My first experience with the "gopher plant" was after it had been planted in my mother's small backyard garden around the borders. The g...Read More

H
Northern California, CA | September 2003 | positive

Although this is often marketed as a pocket gopher control, it would only work if the gopher actually CONSUMED in large quantities the ro...Read More

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