Rudbeckia, Cutleaf Coneflower, Double Black-Eyed Susan 'Goldquelle'

Rudbeckialaciniata

Family
Asteraceae (ass-ter-AY-see-ee)
Genus
Rudbeckia (rud-BEK-ee-a)
Species
laciniata (la-sin-ee-AY-tuh)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
24-36 in. (60-90 cm)
Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
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)
Bloom Color
Gold (yellow-orange)
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Mid Fall
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
Flowers are good for cutting
Flowers are good for drying and preserving
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
By dividing the rootball
From seed; direct sow outdoors in fall
Seed Collecting
Regional

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

Lula, Georgia

Garden Valley, Idaho

Buffalo, New York

North Augusta, South Carolina

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Gardener's Notes:

1
positive
0
neutral
0
negative
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| November 2005 | positive

A very tall rudbeckia, for the back of the border, does get a little floppy, but it gives it character. Watch out, it is susceptible to p...Read More

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Featured
Birch Shield-bug
(Elasmostethus interstinctus)
Cooper's Hawk
(Accipiter cooperii)