hey bro nothing against foxfarm but its what i started with as a begginer and i thought it worked very well but i was a begginer .....now if u want plants 2 ft hight 3 ft wide in 3 weeks from seedling use sunshine pro mix #4 with canna nuts has lots of coco perlite and all that good stuff my plants are fucking enormouse and its barely bin a month 2ft lng 3ft wide all 3 of them and still cant believe my eyes my plant when using foxfarm were the same size when done flowering as the 3 week old plants i have now ..trust me man foxfarm is for begginers ........wish i could post a pik for you but i use a tablet sry... but u wont regret it
I have to comment on this one. Sunshine Pro Mix is good soil, but your assumptions and statements do not follow a logical pattern. You used Fox Farm when you were a beginner. So, you used a great soil and it yielded results, when you were a beginner. There's a lot of differences that have nothing to do with soil that could account for your claims that Pro Mix is better (again, I'm not saying it's not a good soil). First off, you are now (apparently with one post here) no longer a beginner. This means that your overall results should be better regardless of which soil you use, because you have experience now.
Other variables to account for your differences in growth might be:
1) Strain
2) Seed vitality
3) Nutrient schedule
4) Lighting
5) Environmental factors like humidity and air movement
6) Size of the pots you've planted in
7) Water quality/ph
Your argument is just a little flawed and anecdotal, unless you ran a valid study using exact same nutes and all other variables were accounted for in a controlled study.
What I'm saying is, both are good soils, and both have their fans. What we both agree on is that Fox Farm works very well for beginning soil grows. Where we differ is that you didn't even mention which Fox Farm soil you're talking about.
2 feet high and three ft wide from seedling sounds healthy but it absolutely depends on the strain, size of container, and proper lighting. Those numbers certainly are not an earth shatteringly good size. 2 feet high isn't killing it. Any soil, including decent dirt from the highway's edge, should be able to sustain healthy plants for three weeks of growth.
Your sample size basically sounds like you're comparing 3 unidentified plants/strains on your first grow to 3 unidentified plants/strains on a more experienced grow, and you're singling out soil as the only variable here.