Woody > Magnolia > Magnolia campbellii > Magnolia campbellii 'Sir Harold Hillier'
Magnolia campbellii
'Sir Harold Hillier'
Sir Harold Hillier Magnolia
Origin: A beautiful hybrid with huge pure white flowers. The original tree grows at Chyverton Gardens in Cornwall, United Kingdom.
| Family |
| Magnoliaceae |
| Genus |
| Magnolia |
| Species |
| campbellii |
| Cultivar |
| 'Sir Harold Hillier' |
| Category |
| Woody |
| Type |
| Tree (deciduous) |
| USDA Hardiness Zone |
| 9 |
| Canadian Hardiness Zone |
| Requires cold season protection under glass. |
| RHS Hardiness Zone |
| H4 - H3 |
| Temperature (°C) |
| (-4) - (-1) |
| Temperature (°F) |
| 25 - 30 |
| Height |
| 8 m |
| Spread |
| 5 - 6 m |
Photographs
Description and Growing Information
Flowering Period
| Cultivation |
| Grow in a sunny situation in humus-rich, moist, free-draining soil that is slightly acidic. |
| Shape |
| Grows to be broadly conical. |
| Growth |
| Medium |
| Pests |
| scale insects, honey fungus, coral spot. |
| Bark/Stem Description |
| Twigs are yellow-green, later grey to ochre. |
| Leaf Description |
| Leaves to 23 x 11 cm, dark green above and pale green beneath. |
| Flower Description |
| Pure white cup and saucer shaped flowers that may measure up to 30 cm wide. |
| Fruit Description |
| Cones to 15 cm. |
| Notable Specimens |
| Chyverton Gardens, Cornwall, United Kingdom. Trengwainton Garden, Madron, near Penzance, Cornwall, United Kingdom. |
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