PlantFiles: Witch Hazel Hamamelis x intermedia 'Diane'
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Hardiness: USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Light Shade
Bloom Color: Red-Orange
Bloom Time: Late Winter/Early Spring Mid Winter
Foliage: Deciduous Good Fall Color
Other details: Flowers are fragrant Average Water Needs; Water regularly; do not overwater Provides winter interest
Soil pH requirements: 5.1 to 5.5 (strongly acidic) 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic)
Patent Information: Non-patented
Propagation Methods: By grafting
Seed Collecting: N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
On Mar 24, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:
Hamamelis x intermedia Diane is extremely rare and prized for its wonderful fragrance, hardiness, and uniquely colored winter-blooming flowers. This hybrid Witch Hazel is a jewel in the landscape. The coppery-red flowers are unrivaled among Witch Hazels for color intensity. They appear in late winter and early spring, before the leaves, and are produced so abundantly that you will want to cut some of the flowering branches for gorgeous indoor arrangements.
In autumn, the foliage turns warm shades of yellow and red. Ultimately growing to 14 to 20 feet tall with an equal spread, Diane needs only moist, well-drained, organic soil in sun or light shade. Zones 5-8.
On Nov 22, 2004, Todd_Boland from St. John's, NL (Zone 5b) wrote:
'Diane' was raised at Kalmthout Arboretum by Robert and jelena de Belder. It was named after their daughter Diane. It is considered the best of the red-flowered witch hazels. the flowers are relatively large and a glowing reddish-orange.
This plant has been said to grow in the following regions:
Grand Junction, Colorado Lombard, Illinois Greater Upper Marlboro, Maryland Boone, North Carolina Coopersburg, Pennsylvania Laflin, Pennsylvania North Augusta, South Carolina Concrete, Washington Seattle, Washington