I have purchased a guava plant one week ago. from the start of having this tree, some of the leaves getting dry and wavy then start to dropping without getting yellow. is this natural or my tree has a disease?
It's near the window and has sunlight about 5 hours a day. The temperature is between 15 and 25 degrees Centigrade, and the humidity is low but I spray water 3 times a week. I am watering my guava about 3 times a week.
and my second question is, is it a good idea to to prune the tree at this time of year (winter)?