What strain of seeds for where I live?

I would like to order seeds on-line for my next years crop. I am not very educated on this subject though. So my question would be.....
What type of seeds should I purchase to grow here in the State of Maine I only have from June - October for growing time. October is pushing it. I am looking for something that will mature in that amount of time. Can anyone help me with this???? I also need to know where to purcahse these seeds????
Thank you so much~!!

Auto flowering cannabis strains such as low rider finish sooner than most. I believe it takes 2 months from seed to weed, or so it says in the description.