Cloning Outdoors

I am looking to clone outdoors because i can't grow indoors. I plan on using a mini greenhouse immediately after planting so that is has the proper humidity and the roots can grow. How long before fall should i cut the clones in order for them to mature enough that i get a decent yield when it comes time for flowering??

..........

..........

You should cut them at about the 2nd week of october

if i'm gorwing outdoors this is gonna be no good how do you figure that?? My fall here starts in september which means that i would be cutting them when my plant is already into flowering. I want to make sure that my clones have enough time to grow and flower as well so that i can harvest the clones and the mother plant at the same time. Maybe i would cut a few later so that i can continue to grow thru the winter inside but i'm not sure if i'm going to do that yet.