Cilantro is a challenge to grow in Florida, Norma, because it is a cool season plant. Don't even think about trying in the summer. Give it a shot when things cool off somewhat in October.
Tru dat. Cold wx crop. Here's a link to the article I wrote "Secret to Cilantro" with pictures! http://www.caleyskitchengarden.com/2013/04/secret-to-cilantro.html