Stop pruning right away, because flowering is going to start too soon to give the plant time to recover, and you will lose overall yield by pinching or topping too late in the season.
To beef up your plants, a carbon source (molasses) is a good one, but remember that outdoors you will quite likely attract ANTS, so I would suggest maybe watering the molasses in very well, and maybe even mulching over the area after application.
Bud mass as GD said is dependent on having a good Phosphate source, so find a high P fert for that, and cut back on N.
stinkyattic Reviewed by stinkyattic on . How can I beef my plants up I got 5 plants outdoors and 2 of them have reached heights of 5" and over, I've kept trimming all my plants to make them bushier, but I'd like to beef them up to get a higher yield. Not too concerned about anything else but yield. Is there anything I can do to beef them up. I'm currently using a 5-5-5 fert as I have over ferted in the past. The days in the UK get shorter after June 21st so I guess it must be flowering. Any help would be much appreciated. Rating: 5