defintly not a field ill tell you that from expericence lets just say 8 plants in the middle of flowering and 3 all most ready to harvest ended up on my local evening news a few years back and i was up all night crying lol but for real no joke, defintly go with the woods there harder to spot from a helicopters view then out in a field where they stand out like a green hat with an orange bill "thanks eminem for that last part" but also get to know the area your workin with and get to know it good cause alot of problems can happen animals, incests, random ppl,and if cops do end up finding it they might keep a whatch on them and try to bust you at the sence so duct tape the bottoms of your shoes so theres no prints and make sure the areas pretty vacant you wouldnt want your babys being found then when there ready to harvest then some dick fucks come and swipe your children away. have fun and play it safe