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    • Photo of Dahlia 'Thomas A. Edison' flower by Leafari

    Photo by Leafari

    Used with permission, all rights reserved

    Show all photos

    Dahlia 'Thomas A. Edison'

    Also Known As

    • Dahlia 'Thomas Edison'
    • Thomas Edison Dahlia

    Plant type

    perennial, bulb / corm / tuber

    size

    • H: 36"-48"
    • W: 24"-30"

    planting zones

    • 8b-11

    More Options

    Dahlia 'Thomas A. Edison' plant details

    Dahlia 'Thomas A. Edison' is a fast-growing broadleaf deciduous perennial bulb / corm / tuber with green foliage. In fall and summer purple flowers emerge. Features glossy texture. Grows well with sun - mostly sun and even moisture water. Does well in average, gritty, rich and well-drained soil.

    CHARACTERISTICS OF Dahlia 'Thomas A. Edison'

    Plant type: perennial bulb / corm / tuber
    Plant family: asteraceae
    Foliage: deciduous green
    Mature size: 24 IN - 30 IN - wide, 36 IN - 48 IN - tall
    Flowers: purple blooms in fall and summer
    Uses: border plant, cutting garden, long-blooming

    GROWING CONDITIONS for Dahlia 'Thomas A. Edison'

    USDA Zones: 8b - 11
    Sun exposure: sun - mostly sun
    Watering frequency: even moisture
    Soil needs: average, gritty, rich and well-drained

    Nursery contributed plant descriptions

    This velvety classic is still the truest deep purple of all dahlias, a color that photos can't quite capture but that modern breeders envy. It was "named for the famous Electrical Wizard with his approval," according to the L.L. Old's catalog of 1939. Grow it and we think you'll agree - it's electrifying!

    By: Old House Gardens

    Gardening facts about Dahlia 'Thomas A. Edison' plant

    How to Grow Dahlia 'Thomas A. Edison'

    • Sun Exposure

      • sun - mostly sun

    • Water Needs

      • even moisture

    • Soil Needs

      • average
      • well-drained
      • rich
      • gritty

    Features

    • Foliage Color

      • green

    • Flower Color

      • purple

    • Flower Season

      • summer
      • fall

    • Foliage Season

      • deciduous

    • Texture

      • glossy

    See other plant types of Dahlia for your garden

    Dahlia 'Moonfire'

    aka Moonfire Dahlia

    Plant Type

    Perennial, Bulb / Corm / Tuber

    Zones

    9a-11

    Size

    Height: 2'-3'

    Width: 3'

    • sun - mostly shade
    • even moisture
    Photo of Dahlia 'Moonfire' flower by Stan Shebs
    View Plant

    Dahlia 'Bishop of Llandaff'

    aka Dahlia 'Bishop of Landaff', Bishop of Landaff Dahlia

    Plant Type

    Perennial, Bulb / Corm / Tuber

    Zones

    7a-11

    Size

    Height: 30"-4'

    Width: 2'-2'

    • sun - mostly shade
    • even moisture - regular
    Photo of Dahlia 'Bishop of Llandaff' flower by Leafari
    View Plant

    More Options

    Dahlia 'Bonne Esperance'

    Plant Type

    Perennial, Bulb / Corm / Tuber

    Zones

    8a-11

    Size

    Height: 12"-18"

    Width: 12"-18"

    • sun - mostly shade
    • even moisture - regular
    Photo of Dahlia 'Bonne Esperance' flower by Cistus Nursery
    View Plant

    More Options

    Dahlia imperialis

    aka Giant Tree Dahlia, Tree Dahlia

    Plant Type

    Perennial, Bulb / Corm / Tuber

    Zones

    7a-9b

    Size

    Height: 17'-25'

    Width: 7'-15'

    • sun - mostly shade
    • even moisture
    Photo of Dahlia imperialis flower by Annie's Annuals & Perennials
    View Plant

    More Options

    Dahlia 'Fascination'

    aka Fascination Dahlia

    Plant Type

    Perennial, Bulb / Corm / Tuber

    Zones

    7a-10b

    Size

    Height: 24"-30"

    Width: 18"-30"

    • sun - mostly shade
    • even moisture - regular
    Photo of Dahlia 'Fascination' close-up, flower by Loicwood
    View Plant
    +224 more Dahlia
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