The tree roots stretch all around the yard and are not specifically under the tree/drip line but are near the surface of the surrounding ground all over the yard, including sunny areas. That shouldn't create a problem, should it? I'm talking a huge tree with huge, far-spreading roots. The growing area I'm planning is in the shade of the tree in early morning and late afternoon/evening. The area where I want to use the soil is next to my house (mobile home) and in the sun from mid morning and throughout the afternoon into early evening.
