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Helianthus annuus By Eva Brownlee. Sunflower Grower Handbook. Propagation Info. Planting date- After frost dates Days to germination- 10-14 Days to harvest- 80 days from planting Climate requirements- Can be grown in zones 1-10. Growing Media.
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Helianthus annuus By Eva Brownlee Sunflower Grower Handbook
Propagation Info • Planting date- After frost dates • Days to germination- 10-14 • Days to harvest- 80 days from planting • Climate requirements- Can be grown in zones 1-10
Growing Media • Nutrient Requirements- 1-2-3 NPK ratio for soil or foliar fertilizers • Water Requirements- Dry, Average to Moist • Types of growing media- Sandy Soil, Well Draining, Loamy Soil, Clay Soil, Moist/Wet Soil, Drought/Dry Soil
Maintenance • Light Requirements- Minimum 6-8 hours of full sun a day • Pruning Requirements- none • Misc Chemical applications- Insecticides or Herbicides as needed • Space Requirements- Cultivar requirements will vary, 12”-24” apart
Pests/ Diseases • Possible Pest Issues- Sunflower Moth, Sunflower maggot, Sunflower Beetle , Birds, Cutworm, Weevils and Grasshopper • Possible Disease Issues- Verticillium Wilt and White Mold • Preventive Measures- Keep weeds down by use of herbicides
Marketing • Costs involved- Seed; 3-4 lbs. per acre @ $15.00 a pound, Fertilizer and Herbicides are needed on a large scale crop. • Possible uses- Cut Flowers, Bird Seed and Oil
Sources • http://sunflower-guide.netfirms.com/fact.htm • http://www.jeffersoninstitute.org/pubs/sunflower.shtml • http://www.sunflowernsa.com/all-about/