Don't tell ANYONE!
If you are growing outdoors, plant normal photo period plants, autos will give you very small yields outdoors. Auto flowering plants generally need lots of light and are best for indoor growing with an 18 hours lights on and a 6 hour lights off schedule and can be a bit tricky to grow, especially for new growers.
Try growing some photo period feminised Indica dominant plants, (70% + Indica genes), they will flower fastest and finish earliest, reducing the chance of an early Autumn cold spell from slowing your plants maturation.
Hope this helps,............ Organoman.