Woody > Hydrangea > Hydrangea paniculata > Hydrangea paniculata 'Kyushu'
Hydrangea paniculata
'Kyushu'
Kyushu Panicle Hydrangea
Origin: In 1926, softwood cuttings were taken by Captain Collingwood Ingram from a slope on a sacred volcano on Aso-San in Kyushu, Japan. He then gave cuttings to Robert and Jelana de Belder of the Kalmthout Arboretum in Belgium, where it was then distinguished and distributed as a cultivar 'Kyushu' named after Kyushu, Japan.
Mike's
Opinion
"
A vigorous upright form that grows to 2.5 m with dark, glossy green leaves topped by white panicles in August. It is not drought tolerant and is suited to individual or mass planting in the shade or woodland type setting. A somewhat rare cultivar.
Michael Pascoe, NDP., ODH., CLT., MSc. (Plant Conservation)
"
| Family |
| Hydrangeaceae (Saxifragaceae) |
| Genus |
| Hydrangea |
| Species |
| paniculata |
| Cultivar |
| 'Kyushu' |
| Category |
| Woody |
| Type |
| Shrub (deciduous) |
| Pronunciation |
| USDA Hardiness Zone |
| 3 |
| Canadian Hardiness Zone |
| 1 |
| RHS Hardiness Zone |
| H7 |
| Temperature (°C) |
| -40 - (-35) |
| Temperature (°F) |
| -40 - (-30) |
| Height |
| 1.5 - 2.5 m |
| Spread |
| 1 - 1.5 m |
Photographs
Awards
Description and Growing Information
Flowering Period
| General Description |
| A vigorous, upright massing shrub. Yellow to dark green foliage in spring. In the summer it is covered with white panicled flowers. |
| Landscape |
| Suited to residential and commercial landscape planting as an accent or mass planting. It is additionally suited as hedges and low windbreaks or screens along seashores landscapes. |
| Cultivation |
| Prefers well drained acidic soil with medium moisture levels and part shade to full sun. |
| Shape |
| A spreading to upright large deciduous shrub. |
| Growth |
| Medium |
| ID Characteristic |
| A spreading to upright large shrub. White panicled flowers from late summer to early autumn. Requires little pruning. When young it can be pruned to become either a shrub or tree like form. In autumn the plant can be cut down to 30 cm from the ground to encourage plant vigour. |
| Pests |
| Grey mould, slugs, powdery mildew, aphids, hydrangea scale, rust, ringspot virus and leaf spot may be problems. Excessive sun will cause desiccation of leaves and bark. |
| Habitat |
| Horticultural origin. |
| Bark/Stem Description |
| Older bark will often peel. |
| Flower/Leaf Bud Description |
| The buds are round and imbricate, globose and glabrous 4-6 scales that are brown in colour sometimes with a whorled character. |
| Leaf Description |
| Leaves are opposite and whorled on vigorous shoots. Leaves are 9-18 cm long and 5-9 cm wide. They are elliptic acuminate, rounded at the base, serrate, dark green, sparingly pubescent and nearly glaborous to smooth abaxially particularly on veins. The petiole is 1-3 cm in length. |
| Flower Description |
| White saucer shaped, whorled panicles that are 10 - 30 cm in size. |
| Fruit Description |
| Lime green open capsule. |
| Colour Description |
| Showy white flowers and dark glossy green foliage. |
| Texture Description |
| The texture is coarse year round. |
| Notable Specimens |
| Royal Botanical Gardens, Burlington, Ontario, Canada. |
| Propagation |
| Softwood cuttings taken from a non-flowering stems and rooted under mist with bottom heat are usually quite successful. |
| Ethnobotanical Uses (Disclaimer) |
| May cause upset stomach if ingested. |
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