Rudbeckia hirta

Rudbeckia hirta

Blackeyed Susan

Low to moderate water requirement; full sun to partial shade. Yellow composite sunflowerlike blossoms are found June to October in fields, prairies or open woods. A highly adaptable perennial species found on coarse or fine textured soils.

Varieties: 

Species Attributes

Height: 
18 
- 48 
in.
Life Form: 
Perennial
Native or Introduced: 
Native
Precipitation: 
Low - Moderate
Sun & Shade Tolerance: 
Full Sun
Part Sun
Elevation: 
ft.

Soil Texture

Coarse: 
Marginal
Moderately Coarse: 
Best
Medium: 
Best
Moderately Fine: 
Average
Fine: 
Marginal

Soil pH

Acidic: 
Marginal
Neutral: 
Best
Basic: 
Marginal
Seeding Rate: 
- 2 
PLS lbs/Acre
Pure Seed per Bushel: 
31.00 lbs.
Seeds per Pound: 
1,710,000
Germination Time: 
Days
Mycorrhizal Dependent: 
Yes
Bloom Color: 
Yellow
Blooming Season: 
Summer
Fall