
BLACK EYED SUSAN
Summary
Black-eyed Susan is an annual or short lived perennial herb that can be found in most all of the states in the U.S. Black-eyed Susan is probably the most widely found wildflower and most recognizable wildflower with the bright yellow petals and dark brown spherical disks. Black-eyed Susan has proven to be a drought tolerant, winter hardy species that is resistant to virtually all insects and diseases. Once established and the plants are allowed to continually reseed from the preceding crop; the stand may perpetuate itself indefinitely. Best growth is on sandy, well drained sites but the species can be found growing on a wide range of soil types and conditions.
Plant Characteristics
Taxonomy
Zone
- Regional Growing Zone
- 1 - Northwest Coastal, 5 - Midwest, 6 - Northeast Lakes, 9 - Southeast, 10 - South Florida, 11 - South Texas, 12 - Southwest
- USDA Plant Hardiness Zones
- 3, 4, 5, 6, 7, 8, 9
- Temperature Zone
- Warm, Cool, Transitional
Plant Characteristics
- Height
- 18" - 36"
- Leaf Color
- Green
- Growing Cycle
- Biennial
- Sun Requirement
- Full Sun, Shade, Partial Sun
Plant Information
- Planting Season
- Fall - Spring
- Plant Depth
- 0.0625"
- Minimum Soil Temp for Germination
- 70° F
- Establishment
- Easy
Seed Information
- Seeds Per Pound
- 1,500,000
- Kingdom
- Plantae
- Subkingdom
- Tracheobionta
- Super Division
- Spermatophyta
- Division
- Magnoliophyta
- Class
- Magnoliopsida
- Subclass
- Asteridae
- Order
- Asterales
- Family
- Asteraceae
- Genus
- Rudbeckia
- Species
- Rudbeckia hirta L.