Helianthus maximiliani

Helianthus maximiliani

Maximilian sunflower

Previous scientific name(s): Helianthus dalyi

Full sunlight; moderate drought tolerance. Aggressive perennial wildflower native to central U.S. plains states. Produces showy, yellow ray flowers from midsummer to fall. Common on deep or heavy soils. Rhizomatous, very competitive in mixes.

Varieties: 

Species Attributes

Height: 
36 
- 60 
in.
Life Form: 
Perennial
Native or Introduced: 
Native
Precipitation: 
Low
Sun & Shade Tolerance: 
Full Sun
Elevation: 
ft.

Soil Texture

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

Soil pH

Acidic: 
Not Adapted
Neutral: 
Best
Basic: 
Not Adapted
Seeding Rate: 
- 8 
PLS lbs/Acre
Pure Seed per Bushel: 
38.10 lbs.
Seeds per Pound: 
225,000
Germination Time: 
Days
Mycorrhizal Dependent: 
Yes
Bloom Color: 
Yellow
Blooming Season: 
Summer
Fall