General Plant Information (Edit)
Plant Habit: Herb/Forb
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 7a -17.8 °C (0 °F) to -15 °C (5 °F)
Plant Height: 24-36 inches
Plant Spread: 24-36 inches
Leaves: Evergreen
Variegated
Other: Gray-green and silver-white
Flowers: Other: In the genus Euphorbia, the flowers are reduced in size and aggregated into a cluster of flowers called a cyathium (plural cyathia). This feature is present in every species of the genus Euphorbia but nowhere else in the plant kingdom.
Flower Color: Green
Other: Green and white
Flower Time: Late winter or early spring
Spring
Late spring or early summer
Dynamic Accumulator: B (Boron)
Resistances: Deer Resistant
Drought tolerant
Toxicity: Other: All members of the genus Euphorbia produce a milky sap called latex that is toxic and can range from a mild irritant to very poisonous.

Image
Trade name information:
Trade Name: Silver Swan
Cultivar name: 'Wilcott'
Common names
  • Euphorbia

Photo Gallery
Location: my garden
Date: 2016-11-10

Date: 2007-10-09
Location: England
Date: 2015-10-28
Location: Kalama, Wa.
  • Uploaded by Joy

Date: 2008-03-16
Location: Kalama, Wa.
  • Uploaded by Joy

Date: 2007-09-29
Location: In my garden
Date: 2014-11-24
Location: In my garden
Date: 2014-09-05

Date: 2013-11-26
Location: Alnwick Garden, Northumberland, UK
Date: 2012-03-09
Location: my garden, Gent, Belgium
Date: 2012-03-11
Location: My garden in Gent, Belgium
Date: 2012-05-20
Location: My garden in Gent, Belgium
Date: 2012-05-20
Location: West Jordan, Utah, United States
Date: 2020-04-01
Location: West Jordan, Utah, United States
Date: 2020-04-01
Discussion Threads about this plant
Thread Title Last Reply Replies
Beauty! by goldfinch4 Feb 25, 2013 11:10 AM 3

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