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Black Eyed Susan (Rudbeckia hirta SmileyZ™ Happy)

Home / Black Eyed Susan (Rudbeckia hirta SmileyZ™ Happy)
Byadmin May 15, 2025May 15, 2025
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black-eyed-susans
Featured
Soil pH Preferences
Slightly acid (6.1 – 6.5), Neutral (6.6 – 7.3), Slightly alkaline (7.4 – 7.8)
Sun Requirements
Full Sun
Uses
Cut Flower, Suitable as Annual
Wildlife Attractant
Bees, Butterflies, Other Beneficial Insects
Bloom Size
3"-4"
Containers
Suitable in 3 gallon or larger
Flower Color
Bi-Color: Orange and brown
Flower Time
Late summer or early fall, Fall
Flowers
Showy
Leaves
Deciduous
Life cycle
Perennial
Minimum cold hardiness
Zone 7a -17.8 °C (0 °F) to -15 °C (5 °F)
Plant Habit
Herb/Forb
Plant Height
24 - 36 inches
Plant Spread
12- 15 inches
Propagation: Other methods
Division
Detailed Information

The Black Eyed Susan (Rudbeckia hirta) in general is native to **North America**, specifically the eastern and central parts of the continent.

While “SmileyZ™ Happy” is a cultivar (a cultivated variety) of Rudbeckia hirta, it still retains the fundamental geographical origin of the species. Therefore, it is still considered to be native to **North America (Eastern and Central USA)**. The cultivar name simply indicates that it’s been selected and bred for specific traits like flower color, size, or bloom time, but the plant’s genetic lineage traces back to the North American native populations.

Suitable in 3 gallon or larger

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  • Home
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    • Indoor Plants
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