It is really late in the year to attempt. Have done it twice. First time I started flower in November and ran thru January. PM was a problem that run. Second time I tried a late run it was started in October and ran thru mid December. Stuff turned out really nice, but I was running supplemental lighting. Both late attempts ended with low yields. TBH I would not recommend doing it, you will see maybe somewhere around 25 percent of normal yield with supplemental lightning and you will need a heater and dehumidifier during those month. If I was going to do a light dep greenhouse set up again I would only consider 2 runs a year March-June and August to November, this is based on So Cal. All of this would be a mute point if I have a professional greenhouse with full environmental controls and lighting.
