Hi I'm trying to grow a potato garden I'm trying to figure out the best way to do so .I'm reading All your messages and sounds very helpful but I have a lot of my wood chips it is mixed from oak tree s and all kinds of trees is that our would that still be okay to use for them ? I do know I have to plant them 12 inches apart and at least 4to 6 inches in dirt? And they take 140days ? And should I teal mulch into garden area for other plants? Thank you all