To me my opinion on growing the biggest plants is that u Must! Plant straight into the ground even a 1000 gallon pot wont stack up to the earth n what she can do no home made living soil will ever stack up ! I'm growing 1" per day with almost every plant n they are just starting to grow . I'm guessing bye the end of next month most of the girls will b close to 6 foot tall in 30 days ! I'm using happy frog fruit n flower , mykoes, and home brewed teas using banana peals egg shells coffee grounds and cantaloupe rhines boiled down.