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HAMAMELIS x intermedia 'Diane'

Image of Hamamelis x intermedia 'Diane'

James Burghardt

Family

Hamamelidaceae

Botanical Name

HAMAMELIS x intermedia 'Diane'

Plant Common Name

Diane Showy Witchhazel, Showy Witchhazel

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Diane witchhazel brings attractive dark red and spice-scented flowers to the winter landscape. Dense tufts of ribbony, faintly fragrant, dark red flowers in the last days of a dreary winter are what makes this somewhat vase-shaped deciduous shrub so terrific. It perfectly blends and amplifies the great ornamental characteristics of its parents, Chinese witchhazel (Hamamelis mollis) and Japanese witchhazel (H. japonica). This hybrid was developed in 1969 by Robert de Belder at the Kalmthout Arboretum in Antwerp, Belgium.

The leaves are a dull dark green, glossy above (mainly when young) and lighter green and slightly fuzzy beneath. They are broadly oval with wavy and gently serrated edges and a short, obvious tip. In autumn they typical turn orange-red to red-purple and when dried linger on the branches. The bark is smooth and brownish gray, but the smaller twigs from which the flowers arise are often more light brown or whitish gray in color. In midwinter to very early spring, its dark red, four petaled, thick and crinkly-curled blossoms add unusual, autumnal color to the garden. They are boldly fragrant, both sweet and spicy, and may last for a month.

Plant 'Diane' in full to partial sun in an organic-rich soil with good drainage. Simply put: the more sun, the grander the flowering circus. The plant is best in acidic or neutral soils that are moist, but it is quite adaptable, noting that its growth will be considerably slower in drier soils and hot locations. As it may have been grafted onto a different witchhazel species' roots, make sure to prune off any suckering stems that arise from below the graft union. Also consider physically removing any lingering dried leaves from the twigs before the flowering begins. Use 'Diane' as a main focal plant in the foundation bed, mixed border or public landscapes – from parks to campuses to commercial courtyard and entrance gardens. It is particularly handsome when low groundcovers blanket the soil under the branches, and later-blooming spring bulbs popping up below the flowering branches heightens the glory of spring to come.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    5 - 8

  • Sunset Zone

    3a, 3b, 4, 5, 6, 7, 15, 16, 17

  • Plant Type

    Shrub

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    8'-15' / 2.4m - 4.6m

  • Width

    10'-16' / 3.0m - 4.9m

  • Bloom Time

    Winter, Late Winter

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Spreading

  • Seasonal Interest

    Spring, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Dark Red

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Blue Green, Dark Green

  • Foliage Color (Fall)

    Red, Burgundy, Dark Red, Orange Red

  • Bark Color

    Sandy Brown, Gray

  • Fragrant Flowers

    Yes

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Feature Plant, Foundation, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No