Plant in full sun in a well-drained soil and irrigate occasionally to very little. Hardy to 0-10° F (USDA Zone 7). It is vigorous but more compact and has bluer-green foliage than 'Tasmanian Tiger'.

The species, Euphorbia characias is native to Southern Europe, Turkey. 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 was the Greek name used by Dioscorides for the plant, which was long used medically for the compounds it contains.

This plant was discovered by Gina Falcetti-Arnold at Mount Vernon, Washington as a naturally occurring sport of Euphorbia 'Tasmanian Tiger' PP15,715 in 2004 in 2004. US Plant Patent Number 19,027 was issued July 15, 2008 and the plant is being marketed in the U.S. by PlantHaven. 

This information about Euphorbia characias 'Glacier Blue' PP19,027 displayed is based on research conducted in our horticultural library and from reliable online resources. We also will relate observations made about it as it grows in our nursery gardens and other gardens we have visited, as well how the crops have performed in containers in our nursery field. We will also incorporate comments that we receive from others and we welcome hearing from anyone with additional information, particularly if they can share any cultural information that would aid others in growing it.