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Rudbeckia triloba
Three Lobed Coneflower (Brown-eyed Coneflower, Thin-leaved Coneflower)
Bushy, upright stems are loaded with tiny, brown-eyed, daisy-like, golden blooms.
- » Biennial or short-lived perennial
- » Clumping, stiff, upright, well-branched stems
- » Loaded with yellow daisy-like flowers
- » Rough-textured thin green tri-lobed leaves
- » Stem leaves are usually narrower and shorter than the species
- » Bloom Time: Early July to mid-fall
- » Flower Size: 4 cm
Plug50
$8.75
1gal
$20.83
- Category:Perennials
- Hardiness Zone:3
- Height:80-100 cm
- Spread:60-70 cm
- Bloom Color: Yellow
Growth Rate
| • | Fast |
Foliage Color
| • | Green |
Landscape uses
| • | Naturalizing |
Planting instructions
| • | Container Plants |
Additional Information about Rudbeckia triloba
Native to Eastern US and has naturalized throughout Ontario.
Growing & Maintenance Tips for Rudbeckia triloba
Grows best in an average to moist, well-drained soil in full sun. It will tolerate some shade but may grow leggy and need support. Deadheading will help prevent unwanted seeding and possibly extend bloom time. Will withstand hot, humid summers and has a good tolerance to drought. Leaving finished flowers will provide both winter interest and food for birds. A biennial that is a very prolific seeder and flowers from its first year's germination.