Answer: Sunflowers thrive in average garden soil in a site that's sunny all day long. If you dig some organic matter (aged-compost, leaf mold or peat moss) into your soil it will help the roots of your plants grow strong. Dig the garden site first, then lay 3"-4" of organic matter over the top and dig it in to a depth of 6"-8". Once you've prepared the bed, sow sunflower seeds about 1/2" deep and water the bed well. Keep the soil moist but not soggy wet. The seeds should sprout within 2 weeks. Water deeply once each week and your sunflowers should flourish.
The varieties I like best include 'Aztec Gold Hybrid', 'Paul Bunyan Hybrid' and 'Mammoth'. Sunflowers need a long, hot summer to mature so get those seeds in the ground as soon as possible!
You can order online at http://www.burpee.com, or phone toll free (800) 888-1447.
Hope you have a successful sunflower season!
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