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Gloriosa Daisy Rudbeckia hirta

Other Common Name(s):

Phonetic Spelling
rud-BEK-ee-ah HER-tah
Description

Black-Eyed Susan is a stiff, upright annual or short-lived perennial that is native to the eastern United States, but has become endemic throughout North America. Because it blooms in the first year when planted from seed in early spring, it is seen as an annual. However, it freely self-seeds and usually remains in the garden. In North Carolina, it grows as a biennial reaching a height of 4 feet. The leaves are alternate with toothed or almost a smooth margin. Some leaves may have 3 or more lobes. Flowers are composed of a brown, domed center surrounded by bright yellow ray florets (sometimes orange) which first mature in mid summer and, with cutting, continue into mid fall. Black-Eyed Susan forgives neglect and has moderate drought tolerance. It matures rapidly in average, well-drained soil; sun to partial shade; and is sometimes found in fields and along banks and roadsides. The trick to growing black-eyed Susan is to give it full sun in decent soil. Moderate fertility will give you the best flower show so avoid the edges of lawns where lawn fertilizer will provide excess nitrogen. 

Cultivars / Varieties:
  • 'Cherry Brandy'
  • 'Denver Daisy'
    2nd Place in the 2019 NC State Annual Color Trials (in ground plantings)
  • 'Indian Summer'
  • 'Sonara'
Tags:
#butterflies#sun#showy flowers#yellow#birds#songbirds#partial shade#annual#drought tolerant#biennial#perennial#herbs#wildlife plant#wildflowers#yellow flowers#nectar plant#salt tolerant#orange flowers#apvg#fall interest#flower arrangements#food source#highly beneficial coastal plants#cpp#NC native#self-seeding#native wildflower#food source summer
 
Cultivars / Varieties:
  • 'Cherry Brandy'
  • 'Denver Daisy'
    2nd Place in the 2019 NC State Annual Color Trials (in ground plantings)
  • 'Indian Summer'
  • 'Sonara'
Tags:
#butterflies#sun#showy flowers#yellow#birds#songbirds#partial shade#annual#drought tolerant#biennial#perennial#herbs#wildlife plant#wildflowers#yellow flowers#nectar plant#salt tolerant#orange flowers#apvg#fall interest#flower arrangements#food source#highly beneficial coastal plants#cpp#NC native#self-seeding#native wildflower#food source summer
  • Attributes:
    Genus:
    Rudbeckia
    Species:
    hirta
    Family:
    Asteraceae
    Life Cycle:
    Annual
    Biennial
    Recommended Propagation Strategy:
    Seed
    Country Or Region Of Origin:
    Eastern United States, NC
    Wildlife Value:
    Butterflies attracted to nectar at the flowers. Songbirds, especially American goldfinches, eat the seeds in the fall.
    Play Value:
    Wildlife Food Source
    Particularly Resistant To (Insects/Diseases/Other Problems):
    Black-Eyed Susans are moderately deer resistant.
    Dimensions:
    Height: 2 ft. 0 in. - 4 ft. 0 in.
    Width: 1 ft. 0 in. - 2 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Annual
    Herb
    Native Plant
    Perennial
    Wildflower
    Leaf Characteristics:
    Deciduous
    Habit/Form:
    Erect
    Open
    Growth Rate:
    Rapid
    Maintenance:
    Low
    Texture:
    Coarse
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Soil Texture:
    Clay
    Loam (Silt)
    Sand
    Soil Drainage:
    Good Drainage
    Moist
    Occasionally Dry
    Available Space To Plant:
    Less than 12 inches
    12 inches-3 feet
    NC Region:
    Coastal
    Mountains
    Piedmont
    Usda Plant Hardiness Zone:
    3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b
  • Fruit:
    Fruit Color:
    Brown/Copper
    Display/Harvest Time:
    Summer
    Fruit Description:
    Small brown seeds late summer
  • Flowers:
    Flower Color:
    Gold/Yellow
    Orange
    Red/Burgundy
    Flower Inflorescence:
    Head
    Flower Value To Gardener:
    Good Cut
    Showy
    Flower Bloom Time:
    Summer
    Flower Shape:
    Radial
    Flower Petals:
    7 - 20 petals/rays
    Flower Size:
    1-3 inches
    Flower Description:
    2"-4" flower head with 10 to 20 bright orange-yellow to red rays surrounding a dark purplish brown egg-shaped dome. Blooms first mature in mid summer producing long-lasting cut flowers and cutting encourages the plants to send out more blossoms.
  • Leaves:
    Leaf Characteristics:
    Deciduous
    Leaf Color:
    Green
    Leaf Feel:
    Rough
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Leaf Shape:
    Lanceolate
    Ovate
    Leaf Margin:
    Entire
    Hairs Present:
    Yes
    Leaf Length:
    3-6 inches
    Leaf Description:
    Lower leaves are larger and taper into long stalks. Margins are rather smooth, with or without a few blunt teeth. Prominent veins and winged petioles.
  • Stem:
    Stem Color:
    Green
    Stem Is Aromatic:
    No
    Stem Surface:
    Hairy (pubescent)
    Stem Description:
    Simple or limited-branching stem; rough and hairy.
  • Landscape:
    Landscape Location:
    Coastal
    Naturalized Area
    Slope/Bank
    Landscape Theme:
    Butterfly Garden
    Native Garden
    Pollinator Garden
    Attracts:
    Butterflies
    Songbirds
    Resistance To Challenges:
    Deer
    Drought
    Salt