Dinner Plate Dahlia, Dinnerplate Dahlia
Dahlia 'Grand Prix'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Dahlia (DAHL-ya) (Info)
Cultivar: Grand Prix
Hybridized by Bruidegom
Registered or introduced: 1965
» View all varieties of Dahlias

Section:

Decorative

Flower Size:

Giant - over 10 inches (250 mm) diameter

Bloom Color:

White

Yellow

Bicolor

Pruning:

Disbud

Height:

36-48 in. (90-120 cm)

Spacing:

15-18 in. (38-45 cm)

Foliage:

Herbaceous

Smooth-Textured

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

Danger:

Parts of plant are poisonous if ingested

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

This plant has been said to grow in the following regions:

Canton, Illinois

Corvallis, Oregon

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On Sep 24, 2009, dahlia_fanatic from Corvallis, OR wrote:

These blooms have many petals and are attractive in the garden through a long opening process. This is a really large yellow and white bi-color.

Neutral

On Aug 31, 2002, mystic from Ewing, KY (Zone 6a) wrote:

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 before first frost.Clean and let dry good.Pack in dry peat and store in cool dry place.