Euphorbia Species, Cypress Spurge, Bonaparte's Crown, Graveyard Moss, Graveyard Spurge

Euphorbiacyparissias

Family
Euphorbiaceae (yoo-for-bee-AY-see-ee)
Genus
Euphorbia (yoo-FOR-bee-uh)
Species
cyparissias (sy-par-ISS-ee-ass)
Synonym
Esula cyparissias
Euphorbia degenerata
Euphorbia esuloides
Keraselma cyparissias
Tithymalus cyparissias
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Herbaceous
Height
12-18 in. (30-45 cm)
Spacing
9-12 in. (22-30 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)
Danger
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Green
Bloom Time
Mid Spring
Late Spring/Early Summer
Other Details
Category
Groundcovers
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
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
Seed Collecting
Regional

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

Stanford, California

Chadwick, Illinois

Mount Prospect, Illinois

Washington, Illinois

Yorkville, Illinois

Calvert City, Kentucky

Ewing, Kentucky

Prospect, Kentucky

Brookeville, Maryland

Roslindale, Massachusetts

Scottville, Michigan

Piedmont, Missouri

Lima, Ohio

Millersburg, Pennsylvania

Lawrenceburg, Tennessee

Leesburg, Virginia

Lexington, Virginia

Olympia, Washington

Spokane, Washington

show all

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Gardener's Notes:

3
positives
2
neutrals
6
negatives
Sort By:
Sort By:
C
ROSLINDALE, MA | February 2014 | negative

A noxious weed here in Massachusetts, spreading both by seed and underground by stolons. In the garden, this is a nasty thug, hard to con...Read More

E
East Longmeadow, MA (Zone 5b) | February 2010 | negative

Noxious Weed Information:
Euphorbia cyparissias L.

This plant is listed by the U.S. federal government or a state.<...Read More

C
northwest, IL (Zone 5a) | March 2009 | negative

Loved it before I knew how far it would spread. Now, in less than a year, it is coming up 2 ft from where it was planted and is in my oth...Read More

W
Spokane, WA (Zone 5b) | May 2008 | negative

Very invasive! In one and a half years it has gone from a sprig to a 10' circle of suckers coming up in the flower bed and lawn. It is ve...Read More

K
Lima, OH (Zone 5b) | June 2007 | positive

While this is known to be invasive in some areas, I have no problem keeping it under control (NW Ohio). The shade of green and the textur...Read More

A
Yorkville, IL (Zone 5b) | May 2007 | positive

I just LOVE this Plant..its so SOFT and very colorful.....I put this around a stump to hide it and it looks GREAT there.....and I love t...Read More

A
A
| June 2005 | negative

This plant is invasive and is listed as such by multiple organizations. It does grow well in our Wisconsin garden. My 2 year old son br...Read More

C
C
Woodland Park, CO (Zone 4b) | November 2004 | negative

Colorado Class A Noxious Weed. Mandatory eradication.
All locations of this plant in Colorado should be immediately reported to th...Read More

D
D
Stanford, CA (Zone 9b) | November 2004 | positive

I actually love this plant where it is. It by a dry creek bed and is interplanted with Mugo Pine, Iris, Statice, Mums etc. It is also n...Read More

J
Scottville, MI (Zone 4b) | July 2004 | neutral

Sun or shade or wherever... as far as I can tell this is a non-stop plant. However, I keep it in a few spots and just keep ripping out w...Read More

B
B
Baa
| October 2001 | neutral

Herbaceous perennial from West and Southern Europe.

Has linear, blue green leaves crowded onto slim stems which appear all...Read More

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