Hydrangea quercifolia 'Ruby Slippers' (Ruby Slippers Oak Leaf Hydrangea)
Botanical Information
| Family | Hydrangeaceae |
| Genus | Hydrangea |
| Species | quercifolia |
| Cultivar | 'Ruby Slippers' |
| Category | Woody |
| Type | Shrub (deciduous) |
| Origin | A cross between cultivars 'Snow Queen' and 'Pee Wee', 'Ruby Slippers' was introduced into commerce in 2010 by the United States National Arboretum. |
Details
| USDA Hardiness Zone | 5 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 6a-6b |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -29 - (-23) |
| Temperature (°F) | -20 - (-10) |
| Height | 120 cm |
| Spread | 120 cm |
| Growth | Medium |
| Flowering Period | June, July |
Description and Growing Information
| Shape | Compact, dense form. |
| Landscape | Works well as an informal hedge or as an addition to a mixed shrub border. |
| Cultivation | Grow in full sun or partial shade in any moist, well-drained soil. |
| Pests | Aphids may be an occasional annoyance. |
| Habitat | Horticultural origin. |
| Bark/Stem Description | Exfoliates to reveal a rich brown inner bark. |
| Leaf Description | Leaves are deep-green, coarsely serrated, and grow to approximately 12 cm in length, turning shades of mahogany-red in autumn. |
| Flower Description | Flowers appear in profusion on large panicles up to 25 cm in length, emerging white and maturing to a deep pink or ruby red. |