Formal Decorative Dahlia, Dinner Plate Dahlia 'Kelvin Floodlight'

Dahlia

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Dahlia (DAHL-ya)
Synonym
Spacing
36-48 in. (90-120 cm)
Danger
18-24 in. (45-60 cm)
Foliage
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Bloom Color
Sun Exposure
Hardiness
Bloom Color
Bloom Time
Bloom Time
Bloom Color
Bloom Time
Bloom Time
Bloom Color
Bloom Color
Bloom Time
Other Details
Other details
Full Sun
Propagation Methods
Parts of plant are poisonous if ingested
Seed Collecting
Pale Yellow
Soil pH requirements
Mid Summer
Late Summer/Early Fall
Mid Fall
Patent Information
Herbaceous
Smooth
Flower Size
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings
Pruning
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Bulbs
Seed Collecting
Fruit Shape
Fruit Size
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Fruit Colors
Growing Habit
Days to Maturity
Seed Type
Disease Resistance
Leaf Type
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Other details
Propagation Methods
Soil pH requirements
Patent Information
Plant Size (check one)
Growing Habit
Growth Rate
Leaf Shape
Leaf Appearance
Degree to which the appearance is present
Leaf Texture (top)
Leaf Texture (bottom)
Leaf Color
Color of Leaf Margin
Leaf Substance
Number of Vein Pairs
Appearance of Margin
Margin Width
Flower Shape
Non-patented
Flower Fragrance
Does it set seed?
Flower Size
Flower Type
Blooming Habit
Foliage Habit
Color Patterns
Awards (if applicable)
Seed Type
Growth Habit
Days to Maturity
Awards (if applicable)
Bloom Shape
Other Details
Pruning Instructions
Kernel Color
Flower Shape
Flower Habit
Bloom Size
Color Pattern
Bloom Shape
Pruning Groups
Bloom Diameter
Heat (Pungency)
Decorative
Fruit Shape
Giant - over 10 inches (250 mm) diameter
Fruit Size
Yellow
Fruit Color
Disbud
Disease Resistance
Seed Type
Flower Size
Size/Type
Flower Characteristics
Leaf Shape/Type
Leaf Texture
Leaf Color
Propagation
Pollination
Bearing Habit
Rootstock Vigor
Disease Resistance
Fruit Usage
Classification
Blue-Green
Regional

This plant is said to grow outdoors in the following regions:

Hayward, California

Hyampom, California

San Francisco, California

Santa Paula, California

Denver, Colorado

Grand Junction, Colorado

Eustis, Florida

Vero Beach, Florida

Atlanta, Georgia

Thomson, Georgia

Indianapolis, Indiana

Arlington, Massachusetts

Revere, Massachusetts

Worcester, Massachusetts

Haslett, Michigan

Saint Paul, Minnesota

Las Cruces, New Mexico

Binghamton, New York

Ithaca, New York

Southold, New York

Staten Island, New York

Apex, North Carolina

Winston Salem, North Carolina

Geneva, Ohio

Lynchburg, Ohio

Perrysburg, Ohio

Springfield, Ohio

Murrells Inlet, South Carolina

Barberton, Washington

Concrete, Washington

Poulsbo, Washington

Salmon Creek, Washington

Menasha, Wisconsin

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Gardener's Notes:

9
positives
1
neutral
0
negative
Sort By:
Sort By:
C
Greenville , OH (Zone 5b) | October 2017 | positive

The best Dahlia! I'm not a big fan of yellow, but this is my favorite Dahlia. It's easy and one of the first big ones to bloom every ye...Read More

B
Concrete, WA | May 2016 | positive

In western Washington state our winters can be long, wet and, in my home in the mountains, down to 5 degrees for a week or so with off an...Read More

L
San Francisco, CA | July 2014 | positive

Big dinner plate size and easy to care for. Better flower production then other giant dahlias. Bloom size is big but plant size remains...Read More

M
Haslett, MI | February 2014 | positive

I have grown Kelvin Floodlight in Vermont and in Michigan. Unlike most A or AA dahlias, this dinnerplate blooms very early, so is especi...Read More

E
Las Cruces, NM (Zone 8a) | January 2014 | positive

I accidently left this plant in the ground and it was just beautiful this year. I believe in the area I live, I should not leave Dahlia'...Read More

B
Appleton, WI (Zone 5a) | August 2006 | positive

Nice large yellow dahlia. Steady bloomer with no problems.

A
Chillicothe, OH | February 2006 | positive

Real nice yellow dahlia----easy to grow, and stores well.

L
Ithaca, NY (Zone 5b) | October 2004 | positive

Beautiful long lasting bright yellow blooms. Mine generally reach about 8" - 10" across. I find mine do best when planted in containers...Read More

D
Lilburn, GA (Zone 7b) | August 2003 | positive

These flowers were huge! Truly dinnerplate sized. Easy to care for also; I live in Z7 and dont have to dig them up, but should since th...Read More

M
M
Ewing, KY (Zone 6a) | August 2002 | neutral

In warmer climates you maybe able to leave the tubers in the ground with heavy mulch. But for me in Zone 6 I have to dig the tubers befor...Read More

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