Plan on having at least three grow areas far apart from each other. One may get discovered, one may get fucked up by pests, one may survive till harvest. Guerrilla growing is not particularly easy, and you have to remember, if you can find it, so can someone else. SWIM used to grow many crops about a full days hike (10 hours scrambling through the brush and mountains) from "civilization." But, even then, some were discovered occasionally over the years. GPS' are your friend when growing far from home. Find hardy outdoor strains suitable to your climate's location.
Also LEO find most grow areas because in the summer, as harvest nears, most native plants may be dry and yellow and there are your big, bright green plants, which stick out like a sore thumb. Good luck and overgrow the government....