Magnolia 'J.C. Williams' (J. C. Williams Magnolia)
Michael's Opinion
A most striking Magnolia and a must for any serious enthusiast.
Botanical Information
| Family | Magnoliaceae |
| Genus | Magnolia |
| Cultivar | 'J.C. Williams' |
| Category | Woody |
| Type | Tree (deciduous) |
| Origin | Bred at Caerhays Castle, Cornwall, England. It is a hybrid between M. sprengeri 'Diva' and M. sargentiana robusta. |
Details
| USDA Hardiness Zone | 5 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 4a - 6a |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -29 - (-23) |
| Temperature (°F) | -20 - (-10) |
| Height | Higher than 12 m |
| Spread | 4 - 8 m |
| Growth | Slow |
| Flowering Period | April, May |
Description and Growing Information
| ID Characteristic | Oblong elliptic leaves and reddish-pink flowers. |
| Landscape | Flower borders and courtyard gardens. |
| Propagation | Softwood cuttings in early summer. |
| Cultivation | Best grown in moist, humus-rich, well-drained neutral soil in full sun. Flowers at a very young age. |
| Pests | Horse chestnut scale, capsid bug and snails. |
| Notable Specimens | Bonython Estate Gardens, Cornwall, England. Lanhydrock Gardens, Cornwall, England. |
| Flower Description | Deep red coloured blooms but appearing almost black from a distance. |
Photographs
Magnolia 'J.C. Williams', form. Lanhydrock Gardens, Cornwall, England. 16/10/2019.
Magnolia 'J.C. Williams', bark. Lanhydrock Gardens, Cornwall, England. 16/10/2019.
Magnolia 'J.C. Williams', bud. Lanhydrock Gardens, Cornwall, England. 16/10/2019.