Fox Farms is a very popular brand around hurr. But any organic one that is made for flowers should be sufficient. If you really want google the nute amounts for marijuana (should give you numbers for Nitrogen potassium magnesium etc etc.) Which will correlate to the numbers on all the nutes in the store that way you can tailor the perfect ratio of nutes.
http://www.a1b2c3.com/drugs/mjgrow9e.htm
I do all the work for you kids ^^ Nutes answer
Make sure you can water them regularly either by hand or with a pump system. And unless the soil rocks i would dig big holes (3X3ft) and fill with organic potting soil. ( I know the soil in texas is clay in rock where i live) Also look into keeping it away from the animals either with fox urine or other stuff or else the rabbits and such will eat them all.
Plant as early as possible after the last frost if you want to get them as big as possible.
Clones you wont worry about, you need a mother and a veg cab to do that really. So unless you can grow a mother inside its not really an issue.
Be very careful about the POPO unless you know you are fine. AKA dont plant in a grid pattern, try to conceal with the surrounding plants. Spread them out if you are gurerilla growing that way if some do get found you wont lose them all. And carry a fishing pole so you have an excuse if you do run into someone and asks why you are so near the giant cannabis field.
DO TONS of research though.
Just curious is this an outdoor grow or a guerrilla grow?