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HYDRANGEA arborescens (WHITE DOME®)

Image of Hydrangea arborescens 'Dardom' (WHITE DOME®) PP14168

Family

Hydrangeaceae

Botanical Name

HYDRANGEA arborescens 'Dardom'(WHITE DOME®) PP14168

Plant Common Name

Smooth Hydrangea, White Dome® Hydrangea

Special Notice

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

General Description

Perhaps the finest of shrubs for a woodland garden. The robust and beautiful White Dome® hydrangea is a deciduous shrub native to the forests of the eastern United States. Its botanical cultivar name is 'Dardom'.

Large, oval, coarsely serrated leaves of medium to dark green cover this hydrangea throughout the warm season and turns shades of lemon yellow and brown in fall. The yellow color seems to be better when fall temperatures are warmer and cool slowly. In summer, dense, dome-like flower clusters appear at the stem tips. The fertile flowers are small, prolific and occasionally surrounded by showy, sterile flowers (with white tepals) along the outside of the cluster. This hydrangea is pollinated by the hydrangea sphinx moth (Darapsa versicolor), and it is also a food source for the moth larvae.

Grow White Dome® hydrangea in partial sun to shade and fertile, moist, humus-rich soil. Once established, it will tolerate periods of drought, especially if planted in shade, though it always looks better with regular water. This is a sturdy, fast growing shrub that flowers on the current season’s growth. If pruning is needed, cut back stems in late winter or early spring. Flower heads dry nicely for use in floral arrangements.

Characteristics

  • AHS Heat Zone

    9 - 1

  • USDA Hardiness Zone

    3 - 8

  • Sunset Zone

    A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21

  • Plant Type

    Shrub

  • Sun Exposure

    Partial Shade, Full Shade

  • Height

    3'-5' / 0.9m - 1.5m

  • Width

    5'-6' / 1.5m - 1.8m

  • Bloom Time

    Early Summer, Summer, Late Summer

  • Native To

    North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, North-Central United States, Central United States, South-Central United States

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Oval/Rounded

  • Seasonal Interest

    Summer, Fall

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Ivory

  • Fruit Color

    Tan

  • Foliage Color (Spring)

    Green

  • Foliage Color (Summer)

    Dark Green

  • Foliage Color (Fall)

    Dark Green, Light Yellow

  • Bark Color

    Sandy Brown

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    Yes

  • Edible Fruit

    No

  • Showy Foliage

    Yes

  • Foliage Texture

    Coarse

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Bark Texture

    Smooth

  • Usage

    Cutflower, Dried Flower/Everlasting, Feature Plant, Foundation, Mixed Border

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Butterflies

  • Self-Sowing

    No