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Ratibida pinnata
North American Native
  • Common Name: Drooping Coneflower, Pinnate Prairie Coneflower, Grayhead Coneflower
  • Cold Hardiness: Zone 3-8
  • Sun or Shade: full sun
  • Bloom Time: June to August
Ratibida piñnata
Rodgersia Henrici Cherry Blush
  • Common Name: Roger's Flower
  • Cold Hardiness: Zone 4
  • Sun or Shade: partial to full shade
  • Bloom Time: late spring
Rodgersia Henrici 'Cherry Blush' photo courtesy of Paridon Horticultural
Rudbeckia fulgida American Gold Rush
  • Common Name: Black-Eyed Susan
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: sun to light shade (minimum 4 hrs direct sun)
  • Bloom Time: mid summer to early fall
Rudbeckia 'American Goldrush' photo courtesy of Walters Gardens
Rudbeckia fulgida Goldstrum
  • Common Name: Black-Eyed Susan
  • Cold Hardiness: Zone 4-9
  • Sun or Shade: sun to light shade (minimum 4 hrs direct sun)
  • Bloom Time: late summer to early fall
Rudbeckia 'Goldstrum' photo courtesy of Walters Gardens
Rudbeckia fulgida var. sullivantii Goldblitz
New for 2025
  • Common Name: Black Eyed Susan
  • Cold Hardiness: Zone 3-9
  • Sun or Shade: minimum 4 hours of direct sun
  • Bloom Time: mid to late summer
'Rudbeckia fulgida var. sullivantii 'Goldblitz photo Pan American Seed
Rudbeckia Treasure Trove
New for 2025
  • Common Name: Black Eyed Susan
  • Cold Hardiness: zone 4-9
  • Sun or Shade: minimum 4 hours of full sun
  • Bloom Time: mid summer to early fall
Rudbeckia 'Treasure Trove' photo courtesy of Walters Gardens
Ruellia humilis
North American Native New for 2025
  • Common Name: Wild petunia
  • Cold Hardiness: Zone 4-8
  • Sun or Shade: sun to partial shade
  • Bloom Time: summer through fall
Ruellia humilis photo Missouri Botanical Garden