Photo by Melody

PlantFiles: Mediterranean Spurge
Euphorbia characias subsp. wulfenii

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Family: Euphorbiaceae (yoo-for-bee-AY-see-ee) (Info)
Genus: Euphorbia (yoo-FOR-bee-uh) (Info)
Species: characias subsp. wulfenii

Synonym:Euphorbia wulfenii
Synonym:Euphorbia veneta

3 vendors have this plant for sale.

3 members have or want this plant for trade.

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Category:
Perennials

Height:
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

Spacing:
24-36 in. (60-90 cm)

Hardiness:
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)

Sun Exposure:
Sun to Partial Shade

Danger:
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Chartreuse (Yellow-Green)

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Grown for foliage
Evergreen
Herbaceous
Blue-Green

Other details:
May be a noxious weed or invasive
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

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 outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Wear gloves to protect hands when handling seeds

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to view:

By sueone
Thumbnail #1 of Euphorbia characias subsp. wulfenii by sueone

By Cactus_Joe
Thumbnail #2 of Euphorbia characias subsp. wulfenii by Cactus_Joe

By Happenstance
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By growin
Thumbnail #4 of Euphorbia characias subsp. wulfenii by growin

By growin
Thumbnail #5 of Euphorbia characias subsp. wulfenii by growin

By gregr18
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There are a total of 16 photos.
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Profile:

2 positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive saya On Nov 23, 2014, saya from Heerlen
Netherlands (Zone 8b) wrote:

Sue-one has sent me seeds a few years ago and since then it makes a show every spring in my garden with tulips and daffodils. But also in other seasons it is handsome because it stays wintergreen and it has a perfect round habit. I cut the stems that have flowered after flowering, also to prevent it to seed around to much. By that it is not a problem to have it in my garden. I wait with cutting the stems as long as possible, just at the moment the seeds have ripened. Why? Because it still looks so handsome until that time comes. Seedlings are easy to pick up to remove, to plant elsewhere or to give away...because in flower it really is a show stopper. Its flowerheads are really heads, bigger than a football and a feast for the bees. If the shrub gets a little tatty after 5 or 6 years I simply replace it by picking up a few seedlings and plant them together at the same spot. And voila..in two years it grows into a wonderful new and same shrub.

Positive nmcnear On May 22, 2011, nmcnear from Novato, CA (Zone 10a) wrote:

Interesting foliage, bright yellow inflorescences, and easy care make this plant a good addition to many gardens in mild climates... Just make sure to cut off the flowering branches when the seeds are developing to prevent it from spreading! Sticky, irritating sap oozes from the tiniest of wounds to the plant, so use gloves when handling or pruning it.

Neutral HifromPEI On May 22, 2003, HifromPEI wrote:

This plant is very attractive throughout the season but it is very invasive - it has taken over the bed I had it in as well as the one next to it and unlike other invasive plants like orange lantern - it is hard to get all of the roots as they are tiny.

Regional...

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

Kingman, Arizona
Alpine, California
Brentwood, California
Clayton, California
Eureka, California
Los Angeles, California
Milpitas, California
Novato, California
Pasadena, California
Pittsburg, California
San Clemente, California
San Leandro, California
Santa Cruz, California
Sonoma, California
Woodland, California
Atlanta, Georgia
Gainesville, Georgia
Lawrenceville, Georgia
Minneapolis, Minnesota
Tekamah, Nebraska
Roswell, New Mexico
Burlington, North Carolina
Medford, Oregon
Norristown, Pennsylvania
Belton, Texas
Dayton, Texas
Issaquah, Washington
North Bend, Washington
White Center, Washington



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