Hi! I repotted my Jade plant two months ago and moved it to an outdoor balcony (East facing) from my north facing kitchen window. I noticed some of the older leaves (bottom ones) are turning yellow and falling off. Some also have brown spots on the topside and along the sides. Is it possible that it's over crowded in the pot? I've repotted twice from the time I got it in Home Depot but I didn't split up the branches because I was worried about damaging the root system. There are 5 twigs in a 4" diameter. Is it safe separate the twigs and how do I space them to maintain a healthy bush looking jade plant? Thanks.