Data specific to Dahlias (Edit)
Size: Giant (AA): over 10 inches in diameter.
Form: Formal Decorative (FD)
Color: Yellow (Y)
Year Introduced: 1959
Country of Origin: Australia
Hybridizer or Originator: Mcdougall
ADS Classification Code: 2
ADS Ribbons: 43

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Plant Height: 3-4 feet
Flowers: Showy
Flower Color: Yellow
Bloom Size: 6"-12"
Flower Time: Summer
Late summer or early fall
Inflorescence Height: 3-4 feet
Underground structures: Tuber
Uses: Cut Flower
Wildlife Attractant: Butterflies
Hummingbirds
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Cuttings: Stem
Cuttings: Tip
Division
Other: Propagate by taking cuttings of newly emerged shoots
Containers: Suitable in 3 gallon or larger

Image
Common names
  • Dahlia
  • Decorative Dahlia

Photo Gallery
Location: My Yard
Location: The Park
Date: 2014-09-19
The bloom must be 10" across. Beautiful.
Uploaded by psudan
Location: Vancouver, BC, Canada
Date: 2019-08-06
Dahlia 'Kelvin Floodlight' (McDougall, Australia, 1959).
Location: My Yard
Location: Highwood IL
Date: 2018-08-27
Location: Vancouver, B.C.
Date: 2023-07-11
First blooms of the season.

Date: 2009-08-09

Date: 2015-09-18
Location: my garden in Dawsonville, GA (zone 7b north Geogia mountains)
Date: 2022-08-03

Box store purchase
Location: My Yard
Location: Dahlia Hill, Midland, MI
Date: 2019-09-05
Uploaded by Wonderbeecats
Location: The Park
Date: 2014-09-05
Location: Ann Arbor, Michigan
Date: 2024-04-25
Tuber, Kelvin Floodlight
Location: English Gardens, Dearborn Heights, MI
Date: 2013-07-08
Uploaded by kiseta

Date: 2013-09-11
Location: The Park
Date: 2014-0914
Location: The Park
Date: 2014-09-05
Location: Northern Michigan
Date: 2013-09-14
Prolific \ Easy Dahlia
Location: English Gardens, Dearborn Heights, MI
Date: 2013-07-08
Location: Oregon
Date: summer 2011

Photo courtesy of Longfield Gardens
  • Uploaded by Joy

Date: 2008-09-08

Date: 2008-08-31

Date: 2009-07-30

Date: 2014-08-20
Uploaded by Oberon46

 Photo Courtesy of Baker Creek Heirloom Seeds. Used with permissi
  • Uploaded by Joy
Location: Dahlia Hill, Midland, MI
Date: 2015-09-08
Location: English Gardens, Dearborn Heights, MI
Date: 2013-07-08
Location: English Gardens, Dearborn Heights, MI
Date: 2013-07-08
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