How do I know when to switch to flowering light?

it depends how big u wanna grow them...................when u switch to 12 hours they gonna double in height .......................so from 30 cm to 90 cm and so on..........................i would say dont grow them too tall.................... 36 inches max....................................take time to spread them horizontally...............more are plant covers........................more bud sites u get......................i shoot for a square of 3 x 3 feet ......................thats what i do.........................and for how many days/weeks hard to say.....................depends on too many factors🙏

Really you can use both through the whole grow if you wanted. Light is a funny thing, so many scientific factors to consider. But if you see pistils forming its probably a good time to turn it on. If youre free..look up Kis Organics cannabis cultivation and science podcast they have an episode all about artificial light and what you're looking for to get quality results. ✌️ happy growing your plant looks amazingly strong already.

Hi @JFWVT! Well, you will see tiny white hairs (pistils) developing onto the new growth, this is a sign that your plant has started pre-flowering, so this is the right time to switch to flowering spectrum. Don't switch to 12/12 light schedule since this is made for photosynthesis strains, as you may already know autos need the maximum light to show their full potentiel, however in my opinion a dark phase is always beneficial, recovery/vertical growth/terpenes&trichomes production happen at night, so I'd recommend to try the 20/4 light schedule. Also, on another topic, your plant seem to suffer from a Magnesium deficiency (yellowing between the veins) so you may need to add some Cal/Mag to your next feedings, from my experience the GG from FastBuds is a voracious Magnesium eater! Hope this will help, keep us up-to-date and happy growing 👊

Hello @JFWVT ! That's up to you. It depends from how long you are willing to wait in order to harvest and from the available space that you have. If you don't have enough space you can start from 12/12 light cycle or you can switch after the first week or the second, whatever you like and you will harvest sooner. If you have enough space you can wait longer until you fill it and you will harvest later. The thing with the little calyxes that appear between branches called pre-flower is that if you switch before you see them it might take 2-3 weeks until the plant gets into full flowering mode but if you switch after you see them it might get to full flower mode in just 5 to 10 days. Happy growing ! 👊

hey there. Yeah basically your plant will let you know when it's time to flip the switch. What she will do after a while is basically make loads of pre flowers (tiny sorta leaves and little mini bulbies at nodal spots) ... when you seen a bunch of those going, you 're good to go ! Gonna follow this going forward love this strain ! 🚀

I recommend waiting until you start seeing small bud sites starting to develop. They should look like small cotton balls. Once you see that, go ahead and switch your lights to flowering. She’s beautiful so far. Good luck!👍