Named after Euphorbus, physician to the king of Mauritania, this robust, sun-loving genus includes the familiar Poinsettia and is over 1600 species strong. Most species have a poisonous milky sap and softly colored bracts that surround subtly defined flowers. Autumn watches their narrow green leaves turn shades of red, orange and yellow.
Honoring plantsman Kent Copton, who developed both a garden and a nursery in Faversham, England, this well-groomed shrubby Euphorbia produces finely hewn cool bluish green foliage and billowing masses of lime-green flowers in an endless summer procession. Compared to E. ‘Dean’s Hybrid’ or E. ‘Blue Haze’, its needle-like linear leaves are longer, while its larger semievergreen mound surpasses E. ‘Limewall’s. For a lovely floral pairing, ‘Copton Ash’ can be planted with Geranium sanguineum var. lancastriense along a pathway, amidst rock work or in a planter.
Size: 2' 0" high x 2' 0" wide.
Hardy to zone 7.
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Other selections in this genus:
- Euphorbia amygaloides ‘Ruby Glow’
- Euphorbia ‘Blue Haze’
- Euphorbia ‘Canyon Gold’
- Euphorbia characias ssp. wulfenii
- Euphorbia characias ssp. wulfenii ssp. wulfenii ‘John Tomlinson’
- Euphorbia characias ssp. wulfenii ‘Lambrook Gold’
- Euphorbia characias ‘Red Wing’
- Euphorbia ‘Dean’s Hybrid’
- Euphorbia donii (Dixter Form)
- Euphorbia ‘Excalibur’
- Euphorbia griffithii ‘Fern Cottage’
- Euphorbia griffithii ‘Fireglow’
- Euphorbia griffithii ‘Great Dixter’
- Euphorbia ‘Helen Robinson’
- Euphorbia ‘Jade Dragon’
- Euphorbia ‘Limewall’
- Euphorbia longifolia
- Euphorbia mellifera
- Euphorbia myrsinites
- Euphorbia polychroma ‘Candy’
- Euphorbia rigida
- Euphorbia sikkimensis