New *Help With Growing In Canada*

Hey all im new here and i have a few questions.
First, I need sum good site names to order seeds from a few good ones
cuz I dont want to get ripped off
and Second if i grow in a small PVC greenhouse can i plant earler??


Thanks

HempDepot.Ca & greatcanadianseeds.com

Both are good and Canadian

Thanks
also what are good Canada Ontario strains?
cuz ill be growing in a small PVC greenhouse soo will be a little warmer