Answer: Zinnia seeds should be sown 6-8 weeks before setting outdoors. They can be transplanted about 2 weeks after the last frost in your area.
Zinnia's aren't terribly happy about being transplanted, so you might try sowing the seeds in individual peat pots. That way you can plant pot and all without disturbing the roots of the little plants.
Sow seeds on the surface of moistened seed starting mix and press them in slightly, but don't cover with additional soil. Keep the pots at 70F-80F. Seedlings should appear in 5-24 days.
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