• Informal decorative
  • Perennial
  • Zones 8–10
  • Purple
  • Double

Thomas Edison

Perennial informal decorative dahlia in purple, blooming in late summer and fall. Informal decorative blooms in dark purple on a compact plant. USDA zones 8–10.

Cross-referenced · 5 sources

Buy from $12.00

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A Thomas Edison dahlia flower up close on the plant
A Thomas Edison dahlia flower up close on the plant

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Thomas Edison dahlia plants in bloom in a garden
Thomas Edison dahlia plants in bloom in a garden

At a glance

Flower form
Informal decorative Double · Medium · 8 in (20 cm)
Colors
  • Purple
Blooms
Late summer, Fall 120 days from planting
Vase life
Not grown for cutting
Height
3½ ft (107 cm)
Sunlight
Full sun
Hardiness
USDA zones 8–10 Perennial

Lift or treat as an annual below zone 8.

Planted as
Tuber
Botanical name
Dahlia hybrid

In the garden

  • Occasionally severely damaged by deer (Rutgers rating)

Find your frost dates and zone by ZIP code

Origin

An older cultivar introduced in 1929 and still offered by Swan Island Dahlias as an exhibition variety.

1929

Sources

Where to buy

Prices rechecked daily
  • White Flower FarmBulbs

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    $12.00Checked Oct 14, 2026
  • High Country GardensBulbs

    Bag of 3

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    $15.99Checked Oct 14, 2026
  • Longfield GardensBulbs

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    $17.25Checked Oct 14, 2026
  • Breck'sBulbs

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    $23.99Checked Oct 14, 2026
  • Swan Island DahliasBulbs

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    $29.95Checked Oct 14, 2026
  • Spring Hill NurseryBulbs

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    $49.99Checked Oct 14, 2026
  • Harris SeedsBulbs

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    $103.80Checked Oct 14, 2026

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All photos

  • A Thomas Edison dahlia flower up close on the plant
    A Thomas Edison dahlia flower up close on the plant
  • Thomas Edison dahlia plants in bloom in a garden
    Thomas Edison dahlia plants in bloom in a garden

Questions

Is Thomas Edison hardy in my zone?

Thomas Edison survives winter in the ground in USDA zones 8 to 10. In colder zones treat it as an annual or lift it before the ground freezes.

Does Thomas Edison need full sun?

Thomas Edison grows in full sun.

When does Thomas Edison bloom?

Thomas Edison blooms in late summer and fall, about 120 days from planting.

Is Thomas Edison good for cutting?

Our sources don't list Thomas Edison as a cut flower or give a vase life for it.

See also

See all →
A Café au Lait dahlia flower up close on the plant Café au Lait Informal decorative dahlia with 8-inch pale peach to blush blooms on 4-foot plants. Informal decorativeMediumLate summer
A Emory Paul dahlia flower up close on the plant Emory Paul Giant informal decorative dahlia, 12-14 in rosy purple-pink blooms, introduced 1962. Informal decorativeGiant (dinnerplate)Late summer
A Hollyhill Black Beauty dahlia flower up close on the plant Hollyhill Black Beauty Informal decorative dahlia with 6 in black-red blooms. Informal decorativeSmallMidsummer
A Imperial Wine dahlia flower up close on the plant Imperial Wine Informal decorative dahlia with 4 in wine-colored blooms. Informal decorativeMiniatureMidsummer

Same colors

See all →
A Diva dahlia flower up close on the plant Diva Formal decorative dahlia with 6-inch dark purple blooms on 4.5-foot plants. Formal decorativeSmallMidsummer
A Frank Holmes dahlia flower up close on the plant Frank Holmes Lavender pompon dahlia with a darker center, 1.5-inch blooms on 3.5-foot plants. PomponMiniatureMidsummer
A Grand Finale dahlia flower up close on the plant Grand Finale Semi-cactus dinnerplate dahlia with 10 in wine-colored blooms. Semi-cactusLarge (dinnerplate)Late summer
A Ivanetti dahlia flower up close on the plant Ivanetti Ball dahlia with dark purple 4 in blooms on 3.5 ft plants, introduced 1999. BallMiniatureMidsummer

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