Let's go foraging!

You know you must look for seasonal edible wild plants. In the summertime, you may find blueberries and blackberries. In the fall, you may find cranberries or amaranth, and so on and so forth. You must keep a keen eye and rely on whatever knowledge your Grandma managed to teach you on foraging related matters. You wonder for hours through nearby groves, checking under every roock for edible mushrooms and gazing towards tree branches in case you see any hanging fruits.

Time to make the knowledge check in order to determine whether you are sucessfull or not. Roll a six sided dice. Your dexterity modifier is -2, however you also have a +2 as a bonus for foraging in familiar land, so you may aswell just roll the dice and keep the result unmodified. If it's 4 or higher, you succeed. If it is 3 or lower, you fail.