Annual Sunflower
Helianthus Annuus
Plant type: Forb, Herb
Growing Season: Warm
Life Cycle: Annual
Cover: High
Soil & Plant Characteristics
Acceptable Soil Types: Clay, Loam, Silt, Sand, Gravel
Acceptable Soil Conditions: Acidic, Heavy metals, Salt
Heavy Metal Type: Cr, Ni, Pb, Cd, Zn, Fe, As
Max Plant Height (in ft): 9
First Bloom: July
Last Bloom: October
Flower Color: Yellow
Location
Minimum Elevation (in ft): 3900
Maximum Elevation (in ft): 8000
Counties: Beaver, Boxelder, Cache, Carbon, Daggett, Davis, Duchesne, Emery, Garfield, Grand, Iron, Juab, Kane, Millard, Morgan, Piute, Rich, Saltlake, Sanjuan, Sanpete, Sevier, Summit, Tooele, Uintah, Utah, Wasatch, Washington, Wayne, Weber
Reproduction and Growth
Growth Rate: Rapid
Germination Overall: High
Germination Rate: Moderate
Germination Requirements: No information found
Reproduction: High
Establishment: High
Ecological
Best Suited For These Conditions: Fire, Disturbance, Riparian
Best Suited For These Management Goals: Energy reclamation, Wildlife habitat, Pollinator habitat, Songbird habitat, Upland Game habitat, Drought resilience, Bumblebee habitat
Additional Information
Commerical Availability: Yes
- https://issuu.com/usuextension/docs/wildflower_guide_2013
- http://www.lhseeds.com/helianthus-annuus-native-annual-sunflower
- https://www.fs.fed.us/wildflowers/plant-of-the-week/helianthus_annuus.shtml
- https://plants.usda.gov/DocumentLibrary/plantguide/pdf/cs_hean3.pdf
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5532558/
- https://www.sciencedirect.com/science/article/pii/S0570178318300174
- https://link.springer.com/article/10.1007/s11270-009-0128-3
- https://www.sciencedirect.com/science/article/pii/S0045653507008491?casa_token=qbFuYEgjMIoAAAAA:pSwYpFTOZ5UAGswK7KZaUSkOsR2x0ru1Rm80Z11557fqZBmC2zWw9zuT57N5AoV0WSyPlPAc
- https://www.tandfonline.com/doi/full/10.1080/10934529.2018.1429726?casa_token=_bWfFhzlz5MAAAAA%3AqWLoTG-g5y31XWgJe5972MGPEERnQMg-QkVxCdLLJ1Yh8v20TEhjrxd4JFol4iDVNZpVLbsDlGA
- https://www.researchgate.net/publication/331629852_The_Effect_of_Seed_Size_and_Burial_Depth_on_the_Germination_Growth_and_Yield_of_Sunflower_Helianthus_annus_L
- https://www.seedneeds.com/blogs/seed-needs/growing-sunflowers-from-seed#:~:text=Sunflowers%20don't%20need%20sunlight,4%22%20to%206%22%20tall.