yes, you can...I have grown many with wally's 1.99 sterile top soil...I mix it with 35-40% perlite @wallys for 2.99
and peatmoss, just to soften it up a bit. also about 2.99

so it is up to you...
Foxfarm is great stuff, but if money is tight you will be fine...just don't but miracle gro. lw