i live down on the southcoast,and have had an outdoor "patch" for the past 4 years.i have always grown high percentage sativa plants as i found the longer flowering indica takes much more flowering time and even down here, the good weather runs out too soon,all that said,you have a green house,i dont.i read somewhere that two crops a year is possible with a green house? if bad weather is on the horizon at the end of september,you could always force them to flower early,as i have this year,so i get my presants early (always good) any way all the best and good luck. keep tokin` n sowin`n growin` rastaman79.