Euphorbia Species, Wood Spurge, Robb's Euphorbia

Euphorbiaamygdaloides subsp. robbiae

Family
Euphorbiaceae (yoo-for-bee-AY-see-ee)
Genus
Euphorbia (yoo-FOR-bee-uh)
Synonym
Euphorbia robbiae
Tithymalus robbiae
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Height
18-24 in. (45-60 cm)
Spacing
9-12 in. (22-30 cm)
Hardiness
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
Bloom Color
Pale Yellow
Green
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Can be grown as an annual
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
Seed Collecting
Regional

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

Wykagyl, New York

Asheville, North Carolina

Elizabeth City, North Carolina

Huntersville, North Carolina

Pittsboro, North Carolina

Taylorsville, North Carolina

Portland, Oregon

Norristown, Pennsylvania

Wilkes Barre, Pennsylvania

Hood, Virginia

Leesburg, Virginia

Fox Island, Washington

Seattle, Washington

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Gardener's Notes:

1
positive
0
neutral
0
negative
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L
Portland, OR (Zone 8b) | November 2009 | positive

Yes, the sap is an irritant. I still give this Euphorbia a positive since it is doing what I wanted, which is colonize dry, part shade un...Read More

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