I usually get a pound to a pound and a half from 2 plants in a 4x4 in soil/coco.
That's spectacular. How long of veg?
With manifolds it’s hard to say what “veg” means. I plan on 30 days for seed to 6 true nodes.
After that, for 8 mains per nugs’ method, it takes 7-10 days for each of three cuts, so let’s say 4 wks to build manifold. During this time i never have more than 3 nodes per main with leaves, and the leaves are still mainly juvenile.
Then you let them go vertical until they reach 12:12 height (i usually do 12-14”).
So, for my grows, time to 12:12 from seed pop is usually 4 wks propagation , 4 wks manifold building, 2 weeks true veg, 2 weeks slack -> 10-12 wks...
Last grow under 8x288 + 4x35 + far red bar +co2 gave 3.8 llbs of bud in 4x4 (16-18 tops/plant)...this time will be less for 2 reasons: the jack herer pheno is the absolute worst yielder i’ve ever grown; i trained plants to have 60+ tops each...
without jh, i’ll prob avg ~ 3/4lb per plant dry this go round.....
Moral of the story: training matters...