Why not just try it and see what happens. At the worst you will have a little more experience in growing. If you do , grow in all day sunlight or nothing at this point in the season and rig up something to keep out the rain. Ive grown outdoors for 2 years and am getting some nice cotton candy about now but my seeds came up on June 1. I also had one come up from seed on July 20 as a back up and is budding like crazy, its a pot of gold seed. Good Luck.