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Products > Euphorbia lambii
 
Euphorbia lambii - Tree Euphorbia
   

[2nd Image]
Habit and Cultural Information
Category: Shrub
Family: Euphorbiaceae (Spurges)
Origin: Canary Islands (Atlantic Ocean)
Evergreen: Yes
Flower Color: Yellow Green
Bloomtime: Spring
Synonyms: [E. bourgaeana, E. lambiorum]
Height: 6-10 feet
Exposure: Full Sun
Summer Dry: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 25-30 F
May be Poisonous  (More Info): Yes
Euphorbia lambii (Tree Euphorbia) - This succulent tree looks like something that came straight out of a Dr. Seuss book! Growing 6 to 10 feet tall and wide it has a thick gray colored main trunk and large open leafless lower stems from which erect thick branches arise capped with a pompom cluster of 6 inch long yellowish-green to blue green leaves. In spring it has 6 inch wide bunches of showy circular greenish-yellow cupped bracts that are held above the foliage holding the small green flowers. Plant in a well-draining soil full sun or even pretty deep shade (where foliage is a bit darker and stems more lanky) and water little if at all to occasionally - with abundant water expect much faster growth and a larger plant. Protect from hard frost as it is hardy only down to about 25 to 30 degrees. Our large plant in the garden withstood the 1990 freeze where temperatures dropped to 18 F but with considerable damage but in 2007 plants in the garden weathered 3 nights down to 25 degrees without damage. Individual plants may only often live for about 10 years but will often set abundant seed which germinates to produce new plants in the garden and fortunately are easy to pull up to relocate or compost but avoid the white sap which can be irritating to eyes and skin. Plant sometimes has stems that spontaneously crest (also called fasciation) with the fan of leaves spreading out along a broadly horizontal stem tip. This plant comes from the island of Gomera in the Canary Islands where it grows in the forest margins of the northwest and central areas of the island from 2,000 to 2,600 feet in elevation and is considered rare in habitat. The name for the genus is derived from Euphorbus, the Greek physician of King Juba II of Numidia and later of Mauritania. In 12 B.C. King Juba named a cactus-like plant he found in the Atlas Mountains after his physician and later Carl Linnaeus assigned the name Euphorbia to the entire genus. The specific epithet honoring British nurseryman Edgar Lamb (1905-1980) was given to this plant in 1960 by the Swedish born Canary Island botanist Eric Sventenius. More recent phylogenetic work has been determined this name to be synonymous with a smaller growing plant also found on the island of Gomera, Euphorbia bourgaeana, and the name Euphorbia lambiorum is also sometimes used. We continue to call it Euphorbia lambii such time as Euphorbia bourgaeana becomes more commonly used.  This description is based on research and observations of this plant as it grows in our nursery, in our nursery garden and in other gardens that we visit. We also incorporate comments received and appreciate getting feedback of any kind from those who have any additional information about this plant, particularly if they disagree with what we have written or if they have additional cultural tips that would aid others in growing Euphorbia lambii.
 
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