I bought a small tree at a grocery store and I'm not sure what kind it is but it looks like a type of juniper. My problem is that it is turning brown around the edges (foliage) and I can't remember what this is a sign of, and I can't seem to find the info I am looking for anywhere else. It gets plenty of sun but not full exposure, the soil always stays moist. Just wondering if you have any advice. Thank you...