Kenneth J. Sytsma from Wisconsin State Herbarium
 

Common Name	False Sunflower
Scientific Name	Heliopsis helianthoides
Height	3'-6' tall
Sun/Shade	Sun - partial shade
Bloom Season	June - September
Bloom Color	Yellow
Soil	Well drained, average, moist
Disease Susceptibility	Powdery mildew - provide air circulation.  Occasional grasshopper problem.
Propagation	Divide clumps every 3-4 years.
Notes	Transplants readily, easy to establish. Attracts butterflies, birds feed on seeds.

 
 

	Prairie Nursery	Heartland Restoration	Enders	Taylor Creek	Possibility Place
Costs	3" Pot  1-3 $3.95ea.  4-11 $2.95ea.  12-31 $2.75ea.  32-63 $2.25ea.  64-95 $1.95ea.  96+ $1.75 ea.  6,500 seeds/oz 1/8oz.-$1.50  1/4oz.-$2.00  1/2oz.-$3.00  1oz.-$5.00  1lb.-$75.00	10.00/oz	Native plant retail prices:  ½ pint - 2.35,  pint - 3.40,  quart - 4.75,  ½ gallon - 5.95, gallon - 7.50 & up	6.00/oz 1.25/plant	Flat of 32, single species, $37.00    2" plug - $2.25 each    gallons - $4.75

Information on Heliopsis helianthoides:
- USDA's PLANTS database. Plant Profile: http://plants.usda.gov/plants/cgi_bin/topics.cgi?earl=fact_sheet.cgi
- Wisconsin State Herbarium - http://wiscinfo.doit.wisc.edu/herbarium/scripts/detail.asp?SpCode=HELHEL
- Landscaping with Plants Native to Indiana. (pamphlet). November 1999.
- List of Roadside Native Plants for Illinois - http://www.inhs.uiuc.edu/~kenr/prairietable1.html
- Cullina, Willaim. The New England Wild Flower Society Guide to Growing and Propagating Wildflowers of the United States and Canada.  Boston: Houghton Mifflin Co, 2000.
-Harstad, Carolyn. Go Native! Gardening with Native Plants and Wildflowers in the Lower Midwest.  Bloomington: Indiana University Press, 1999