I recently rescued an unloved, untended rhododendron from a demolition lot near my home. The basic subsoil should be the same, so I'm assuming it will tolerate the general conditions. I've put it in my front yard, in the middle of an established lawn, with compacted old soil. I did dig a fair sized hole for it, but the roots were splayed out - no tidy root ball! I gave it copious water when I planted it. The plant is happy - it bloomed fully, and after very few brown leaves, it has started producing new ones. I went online after the fact and read pages & pages about how you must prepare peat and loam in a broad spread around the roots for the plant to thrive. I don't necessarily want the plant to get bigger (it's an uneven 3' x 3' now, and not a youngster), but I do want it to survive and thrive. Do I need to dig back down and under the roots and amend the soil surrounding them? Or is it okay to just wait and let it tell me how it's doing?? The front yard is on the high end of our property, so it drains fairly well, even though the subsoil is clay. Thanks for any and all advice!!!!