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Rudbeckia triloba (Brown-eyed Susan)


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This is a fairly tall annual or biennial (or short-lived perennial) that can reach three to five feet tall. Brown-eyed Susan attracts many pollinators, including butterflies and a large variety of bees.  The flower heads are more numerous but smaller than black-eyed Susan (R. hirta), which is also an annual. It blooms for a long time during summer.

Uses: Pollinators, deer tolerant, drought tolerant
Bloom time: July - September

Height: 3 to 5 feet
Space:  1.5 to 2.5 feet

Sun: Full sun to medium shade
Moisture: Average to moist

Seed: Much of the seed will germinate without any special treatment, but a brief period of cold-moist stratification can be beneficial.

  • 200 seeds per packet
  • 31,250 seeds per ounce
  • 1 ounce per 1,000 square feet

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