Euphorbia characias 'Silver Swan' (Silver Swan Spurge)
Botanical Information
| Family | Euphorbiaceae |
| Genus | Euphorbia |
| Species | characias |
| Cultivar | 'Silver Swan' |
| Category | Perennials |
Details
| USDA Hardiness Ref. | |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -18 |
| Height | 45 - 60 cm |
| Growth | Medium |
| Flowering Period | July, August |
Description and Growing Information
| General Description | A thick, stout taproot supports biennial stems arising from its woody base, becoming wider on older plants as the outer stems lean outwards. Flowering on two year old stems, the clusters of chartreuse flowers have black to reddish-brown nectaries. |
| Cultivation | Plant in full sun in well drained soil. |
| Habitat | Horticultural origin. |
| Leaf Description | Long, narrow, evergreen foliage that has wide silver margins more or less spirally clothe the stems. |