Hello everyone,I am new to this stuff.When I was a kid we used to have a garden and I loved growing my own veggies.Now I live in New York City for the past 25 years.I have one small spot by the garage where I tried growing a garden few years back,without much success.In 5 years , when my kids finish high school and go off to college I am planning to move back to the country and buy a few acres of land.I am very interested in growing my own healthy food.I figure that if I am to have any success with any acres I have to be able to manage the little spot by the garage.The spot is 20x13 the garage is on the south side.My dogs have been using it as a bathroom for the last few years.My plan is to make raised beds with wooden walls made of 4x4 that I can get for free.The issue I have is with the trees growing around. Their roots come up and drain all the moisture because this is one area that is not cemented over.The roots have raised the dirt by about 4 inches in the last few years.Should I put some kind of a barrier on the ground or just cement over the area and make raised beds on cement I would like to keep it the way it is without cement.The soil is not the best quality as far as I can say.I think about composting leaves from the trees with kitchen scraps maybe some saw dust and pigeon poop I can get from my friend.Any advice,help,ideas would be a big help .Thanks Kris