General Information

  • Category- Flower
  • Binomial Name- Rudbeckia hirta
  • Common Names- Brown-eyed Susan, brown betty, gloriosa daisy,
  • Spread- 18 inches**
  • Height- 20-25inches**
  • Average Production- 28-45 flowers per plant
  • Days to Maturity- 60 days*

Environmental Requirements

  • Soil-  Clay and Loam
  • Soil pH- 6.8-7.7
  • Soil Moisture- 15%
  • Sun Requirements- Full Sun
  • Best Time to Plant- Spring or Early fall (February, March, August)
  • Temperature range- 18-30 Celsius

Tips to grow Black-Eyed Susan

  1. Arrange good quality black-eyed Susan seeds.
  2. The soil should be evenly moist, but not wet or soggy. It should be well draining also.
  3. Plant the seed 0.25 to 0.5 inches deep in the soil and plant seeds closer to prevent lots of spreading or plant further apart to make a nice border.
  4. It’s best if soil is fertile though they can tolerate tough conditions.
  5. Be sure to remove faded/dead flowers to prolong blooming. You can cut back black-eyed Susans after they flower and a second, smaller bloom may occur in late fall.
  6. After the first season, black-eyed Susans can reseed themselves!

** The values are standard values but might change a bit.

*To get flowers quickly, the users can buy plants from nursery.

Flowers