Well you will need flowering nutes but you can probably get away without getting veg nutes. I don't know what walmart has but home depot and lowes both have nutes for sure. I think they have like schultz im not sure. It doesn't really matter so long as you get some with an npk ratio of 1-2-1 or 1-2-2. If you want veg nutes get one with a ratio of 2-1-1. Doesn't have to be the exact ratio.. there's shit like .14-.07-.05 which is basically the same thing.