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 Euphorbia have a poisonous milky sap and soft-colored bracts that surround subtly defined flowers. Autumn watches many of their narrow green leaves turn shades of red, orange and yellow.
Rallying exceptional three season appeal, this regal British Euphorbia is most likely a hybrid between Euphorbia cornigera and Euphorbia schillingii. Sumptuous red-tinted young shoots enhance the mature green leaves that don prominent creamy midribs plus fine-drawn plush burgundy margins. Crowned by long-lasting flowers with greenish yellow bracts, ‘Excalibur’s erect habit flushes crimson for a snazzy fall finale and remains evergreen in milder climates.
Size: 3' 0" high x 15" – 2' 0" wide.
Hardy to zone 5.
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Other selections in this genus:
- Euphorbia amygaloides ‘Ruby Glow’
- Euphorbia ‘Blackbird’
- Euphorbia ‘Blue Haze’
- Euphorbia ‘Canyon Gold’
- Euphorbia characias ssp. wulfenii
- Euphorbia characias ‘Bruce’s Dwarf’
- Euphorbia characias ssp. wulfenii ssp. wulfenii ‘John Tomlinson’
- Euphorbia characias ssp. wulfenii ‘Lambrook Gold’
- Euphorbia characias ‘Red Wing’
- Euphorbia ‘Copton Ash’
- Euphorbia ‘Dean’s Hybrid’
- Euphorbia donii (Dixter Form)
- 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