Answer: Sunflowers don't have any particular requirements other than full sunshine and well-draining soil. Choose a spot that gets sunshine all day long, prepare the soil by digging in some compost or aged-manure (try spreading 3-4 inches on top of the soil and digging it in 6-8 inches). Plant your seeds and keep the soil moist until the sprouts appear, and then water deeply once a week. If your plants are falling over, the roots may be having trouble penetrating the soil, or you may be overwatering them. It's not too late in the season to try again with fresh seeds. Good luck!
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