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just to clarify.... i should leave in 24hrs of darkness. Then i can go back to normal cycle and it will still flower. What do you mean by, "the plant stops everything there after"?

won't this turn them hermie? It's an extra four hours of light.... Are you sure they can handle this sort of change?

I've got two plants that are in the third week of flowering. they are growing in a greenhouse so to get 12/12 i carry them inside at 10pm and outside again at 10am. But i'm going on holiday in 10 days and there's no one here to do that. What shall i do??

i am growing two plants in a greenhouse and i am two weeks into flowering. To flower them i just bring them inside at 10:00pm and take them out at 10:00am for 12/12 cycle. I need to use a fan because the stems are looking thin and weak BUT there is no power in the greenhouse. My question is...

yeah the flowering seems to be going really slow. The flowers are tiny considering I've been 12/12 for at least 10 days. Anything i can do to speed things up/make flowers bigger? Thanks for the quick reply.

I'm growing two 'AK48' plants in my greenhouse. They are about two weeks into flowering (i changed to 12/12 by covering them every night). This is my first grow so I have no idea how much yield i will get. Any ideas??

Thanks for everyone's feedback. Here are some new pics and a few more questions. 1. what kind of yield will i get from these plants? 2. Is this definitely female? 3. Do these redish stalks matter? thanks

what kind of yield will these plants give me??

its going alright with no ph pen so far. A few brown leaves, thats all and thats natural.

what are ec levels? and how do you know my ph is low? I dont have anything to test ph.

Thanks for the advice! I'll see what happens over the next week. I dont think you can get foxfarm in the uk though unfortunately. cheers.

i havnt really gone and bought any special stuff. Just been using the soil and basic fertilizer that my mum uses for her tomatoes!! i know that sounds bad but thats all i had to work with! I tried a fert (15-30-15) because someone told me it could be phosphorus but this didnt seem to work...

The problem is getting worse :(. Here's some pics.... Any other thoughts?

its so exciting....preflowers are showing now on both of them and are both females (i'm 90% sure anyway). I'm so attached to these plants I just dont won't them to die!! I tried feeding them with a high phosphorus fertilizer but this didn't seem to work as they are now even worse. I'm thinking...

thanks for your help. i'm pretty sure i dont have mites which is good. Someone told me it could be phosphorus deficiency so I used a high phosphorus fertiliser yesterday but added quite a lot..... But they seem to have gotten worse. Could I have over fed them. I'm guessing its something to do...

I have two greenhouse plants which are 2.5 ft tall. I started 12/12 about 10 days ago and first preflowers have just been spotted. (there female!) However they are not looking at all healthy....The pictures show there problems. Help would be hugely appreciated!

thanks for your help. I'll transplant them and post some more pics in a few days. Just wondering what 12/12 actually means. When i cover them up, it's dusk outside..... so there's still a little bit of sunlight. does dusk count as part of the light stage? And does it matter if it's not exactly...

I've been growing these two plants in my greenhouse for about 6 weeks. I have a few problems so any advice would be appreciated. First.... the big bottem fan leaves keep going yellow and dying which means my plants are not looking at all bushy! There are also brown patches on a few leaves. I am...