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Rudbeckia hirta

Also called Black-eyed Susan


More About Rudbeckia hirta

  • AKA Rudbeckia gloriosa
  • Biennial or short-lived perennial
  • Pale, daisy-like flowers with golden petals surround a central, dark cone
  • Rough, hairy, mid-green, lance-shaped leaves, 10 cm long
  • Stem leaves are usually narrower and shorter than the species
  • Bloom Time: Early July to September
  • Flower Height: 100 cm
  • Foliage Height: 70 cm
  • Flower Size: 8 cm

Interesting Notes:

Native to Ontario

Zone:

4

Height:

60-70 cm

Spread:

40-60 cm

Colour:

Yellow
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Gloriosa Daisy Growing and Maintenance Tips

A biennial, it is a very prolific seeder and flowers from the first-year's germination. Grows best in an average to dry, well-drained soil, in full sun to partial shade. Deadheading will help with overall appearance but not necessary for extending bloom times. Tolerates hot and humid summers and has a good tolerance to drought. Leaving finished flowers will provide both winter interest and food for birds. 


Rudbeckia hirta Characteristics

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Attracts Birds
Attracts Birds
Attracts Butterflies
Attracts Butterflies
Fast
Fast
Drought Tolerant
Drought Tolerant
Heat Tolerant
Heat Tolerant
Native to Ontario
Native to Ontario
Cut Flower/Foliage
Cut Flower/Foliage
Long Blooming
Long Blooming

Soil Moisture

Average to Dry Soils
Well-drained
Moist to Average

Flowering Time

Lt. Sum-Fall
Fall
Summer

Habit

Clumping
Upright

Foliage Color

Green

Landscape uses

Rooftop (extensive)
Naturalizing

 Suitable Substitutions for Rudbeckia hirta