I arrived home from holiday to find that my girlfriends nan who lives with us has put osmocote pellets on nearly all of my plants, I had bought the bag of osmocote to try some out on some neps but not used it yet, she thought she was helping and said some plants looked like they needed some help which is her reason why she has done it. She was put in charge to look after the plants why we were away but we told her to only water them, she is old and doesn't listen and always thinks she knows best, she also cannot grasp the fact these plants don't need fertiliser and does not understand them but she has grown plants and vegetables for years and thinks she knows everything and will not listen to me. In some pots the osmocote has been pushed down into the media so repotting would be the only way. My worries are do I need to repot everything? I have many plants, or will some plants be Ok with the osmocote?