Re-potting during flowering and need help

I have 2 plants in soil roughly 5 months old but arent as tall as you'd expect and arent very bushy due to newbie mistakes and poor environmental conditions (which have been sorted).

They are 2 weeks into flowering and i am seeing very little happening, and it is my feeling that the containers they are in are too small thus stunting its growth. So this weekend i plan to re-pot them. The soil was given to us with the plants and i have no idea what kind of soil it is. The plants look healthy but the plant in the smaller pot is always drooping and is significantly smaller than the plant in the larger pot.

1) Is it a bad idea to be re-potting 2 weeks into 12/12?

2) Should i keep the existing soil and just add more to fill the bigger pot, or should i completely get rid of all the soil and replant using a completely fresh lot?

3) If i completely ditch the existing soil, how exactly do i do that without fucking the roots up? I think its pretty tightly packed in there. Also, when i re-pot it, do i need to manually distribute the roots out around the soil as much as possible or do i just place the mass of roots into the soil and let nature take its course?


4) What kind of soil should i use? I understand that this is an extremely broad question but i really dont have any idea what to use. All i know is to stay away from the shit with slow release nutrients.

5) Is there such thing as too much soil/too bigger pot?

Cheers guys.

Hi nizmo
I had to repot 3 flowering plants one time and all I did was get a larger pot and filled it till the plant Iam repotting is level with the top of the pot.Set the plant that you are repotting in the pot and fill in with good soil around it.Remove the potted plant from the bigger pot and remove the plant from its pot.I gently losen the soil alittle and place it in the hole I made in the larger pot.I sprikle some root tone in the hole and on the root ball and place in the hole.Water litely and watch it start to growing again.It slows the grow down alittle but starts back better than ever.It worked for me ,hope this helps,but thats all I know about it.

The easiest way too not stress it would be to cut the bottom of the pot and put the pot into a larger pot. I did this during flowering and it's paying off big time. Take a peak at my thread and you'll see a close up of a pot inside a pot. The only downside to a large pot can be overwatering so you will have to let it dry out between waterings. Hope this helps. Good Luck.