Rudbeckia hirta

Black-eyed Susan

Asteraceae

Plant Specifics

Form:Flower
Life Span:Annual to short-lived perennial
Flower Color:Yellow
Fruit Color:Brown
Phenology:
Noted for:Showy flowers

Landscaping

Recommended Uses:Wildflower gardens, roadside wildflowers, meadows.
Propagation:Seed.  While this is a short-lived perennial, it is usually grown as an annual.  Readily self-seeds.
Availability:Seed
Light: Full Sun
Moisture Tolerance:
always floodedextremely dry
 (Somewhat moist, no flooding ----- to ----- Very long very dry periods)
Moisture Tolerance: Somewhat moist, no flooding ----- to ----- Very long very dry periods
Salt Water Flooding Tolerance:Not salt tolerant of inundation by salty or brackish water.
Salt Spray/ Salty Soil Tolerance:Low/no tolerance of salty wind or direct salt spray
Soil or other substrate:Sand
Soil pH:Adaptable

Ecology

Wildlife:
 

Seeds eaten by small birds such as finches.

Insects:
  

  • Attracts bumble bees, butterflies
  • Larval host for the silvery checkerspot, found only in extreme north Florida.

Native Habitats:Predominantly ruderal.  Roadsides and waste places.

Distribution and Planting Zones

Natural Range in Florida
USDA Zones

Suitable to grow in:
10A 10B 8A 8B 9A 9B 

USDA zones are based on minimum winter temperatures

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