I bought a plant,"Ivy Starling",I followed the light and water instructions and for the first few months it was lovely. Then some of the stems started drying up . I had treated it for aphids and it did not seem to hurt it. When it started dying,I repoted with fresh soil and a clean pot. It seemed to do good for awhile,now it is looking like it is dying again. I always check the moisture so as not to overwater, Is there something else I can do to save it? I have already done in a Boston Fern. I don't want to get a name for myself.