12/12 to outdoor grow

[jimmyboy77]

Hello All, Hope you all had a successful and bountiful grow season ! Unfortunately I did not although one of my three plants turned male through stress and so I let it fertilise another and now I have a real bounty of seeds that I no doubt will have to check for male or female strains ! Just a question: I guerilla grow where the season is relatively short and I m trying Sativa strains which need a longer flowering time than Indica. A fellow grower said that if I could turn them into 12/12 lighting early in the veg stage after there are enough nodes for branches then after they begin flowering I could put them outside for the summer and they will continue to flower even if they get more that 12h of light. He said once he sets 12/12 flowering and they begin flowering, after a week or so he puts the light on 24/7 and they love it. I just want to give my plants enough flowering time outside before it turns cold. Is this possible ? Any help would be appreciated,

[Rwise]

If you put a photo plant into flower and then increase the light cycle it will reveg and set them back 2-4 weeks. You may get away with a 13/11 or even a 14/10 for some strains, no way you can put a photo on 24/0/7 and get away with it, your fellow grower is doing you in.

[Rwise]

Now IF they were autos then 24 hours light is ok, still many prefer 20/4 (or even 16/8) which gives them a daily rest period (and saves on power use).

[jimmyboy77]

Thanks for the much needed advice