My mom recently dug up a mex fan palm from her yard and had it sitting in a small pot with some amaryllis and daylilies, under a pine tree for about a month before she was able to get it to me. It is about 2ft tall and had 7 green fronds when she gave it to me, but I since repotted it (separating from the other plants it was in with), 3 of the bottom fronds have turned brown. The other 3 look ok and there is a new one that is green in the center. I repotted it in a larger pot in MG mixed with coarse builders sand. It didnt look like any roots were broken. I have it in morning sun afternoon shade for now. Is this potting mix appropriate for this palm? I think it is in shock..What else can I do now? thanks