Thomas A. Edison
A century-old royal purple classic that still rules the garden and vase alike
Also known as: Thomas Edison
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Informal Decorative · 8–10"PurpleVan Waveren & Sons (1929)Netherlands
Thomas A. Edison is an informal decorative dahlia that opens 8–10" blooms in purple. Thomas A. Edison has anchored gardens since 1929 with blooms of deep, saturated royal purple that hold their color from bud to petal drop. It was bred in Netherlands by Van Waveren & Sons in 1929.
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Specifications
Physical
- Form
- Informal Decorative
- Bloom class
- A8–10"
- Bloom size
- 8–10"(20.3–25.4 cm)
- Plant height
- 48–60"
Color
- Color
- Purple
- Pattern
- Solid
- Tags
- royal purpledeep purplevioletplumrich purple
Growing context
- Flowering season
- Mid season
- Cut flower
- ✓ Yes
Provenance
- 1929
- Netherlands
- Breeder
- Van Waveren & Sons
Grower Profile
Difficulty
Ideal for
About Thomas A. Edison
A pre-war dahlia with more than 97 years of continuous catalogue history.
Growing Thomas A. Edison
Plant in full sun and stake early, before growth exceeds knee height. Pinch above the third node to build a branching framework and increase bloom count. Feed with a low-nitrogen formula once buds form, and keep soil evenly moist but never waterlogged. Cut stems early in the morning when blooms are just three-quarters open for the longest life in the arrangement.
- Spacing
- Space about 3 ft apart
- Staking
- Stake early — stems carry heavy blooms and lean in wind
Frequently asked questions
How tall does Thomas A. Edison dahlia grow?
Thomas A. Edison reaches 48–60" at maturity, so plan to stake plants early to keep heavy blooms upright.
When does Thomas A. Edison dahlia bloom?
Thomas A. Edison is a midseason bloomer, in flower from midsummer through first frost.
Is Thomas A. Edison dahlia good for cut flowers?
Yes — Thomas A. Edison is well suited for cutting, with approximately 6-day vase life.
Is Thomas A. Edison a good dahlia for beginners?
Thomas A. Edison is rated beginner-friendly — reliable in typical garden conditions without specialized care.
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