Ceratostigma willmottianum (Chinese Plumbago, Hardy Plumbago)
Botanical Information
| Family | Plumbaginaceae |
| Genus | Ceratostigma |
| Species | willmottianum |
| Category | Perennials |
| Origin | China and Tibet. |
Details
| USDA Hardiness Zone | 8 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 8 |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H4 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -10 to -5 |
| Temperature (°F) | 14 - 23 |
| Height | 1 m |
| Spread | 1.5 m |
| Growth | Medium |
| Flowering Period | July, August, September |
Description and Growing Information
| General Description | A small ground cover with green leaves that turn a vibrant red in autumn and with rich blue flowers that appear in terminal clusters in mid-summer. |
| Landscape | Excellent in cut flower gardens or as a container plant. |
| Propagation | Propagate through semi-hardwood cuttings. |
| Cultivation | Grow in full sun (preferred) or partial shade in a moist, well-drained soil. |
| Notable Specimens | Lanhydrock Gardens, Cornwall, England. |
| Leaf Description | Leaves are green, growing up to 5 cm in length and turning red in autumn. |
| Flower Description | Flowers are a rich blue, up to 2.5 cm in diameter, appearing in terminal clusters. |
Photographs
Ceratostigma willmottianum, form. Lanhydrock Gardens, Cornwall, England. 16/10/2019.
Ceratostigma willmottianum, leaf. Lanhydrock Gardens, Cornwall, England. 16/10/2019.
Ceratostigma willmottianum, flower. Lanhydrock Gardens, Cornwall, England. 16/10/2019.
Ceratostigma willmottianum 'Forest Blue'. Lanhydrock Gardens, Cornwall, England. 16/10/2019.
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