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Common
name: Sweet Black-eyed Susan or Sweet Coneflower
Latin name: Rudbeckia subtomentosa
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Zone: 4
- 7
Elevation to: 7000'
Growth habit: Upright
Max height: 36" 48"
Spread: 18" - 24"
Flowers: Yes, July - August
Flower type: Daisy like
Native to area: Yes, Rudbeckia
columnifera
Available varieties: 1
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Pictured: Rudbeckia
subtomentosa |
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Photo:
Missouri Botanic Gardens |
Cultivation:
Plant in full sun in well drained soil. "Sweet Black-eyed
Susan" tolerates most soils, heat and drought well. Space new
container grown plants 18" - 24" apart. Flowers
are good for cutting and attracting butterflies.
Propagation:
Seed can be started in a cold frame or greenhouse in early spring,
then moved outdoors after danger of frost has passed. For quicker
growth... purchase pre-started plants at your local Garden Center.
Once established plants can be divided in spring or early fall.
Potential pests ~ diseases:
Aphids or powdery mildew. |
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