Agree with Daisy on all three points. Plus it does look like you might have some mites. Easy to tell for sure, just run your finger firmly across the underside of a leaf - choose one that looks mottled in color. If it comes away slightly yellowish or orange, there were mites under there. A thorough spraying with the hose, including hitting the undersides of the leaves will often take care of them. A spray with soapy water is another option, and you will need to do either treatment at least twice within a week to get all the generations of mites. Don't make the soap solution too strong - about 1/2tsp. per quart of water is plenty and rinse the soap off when you've sprayed the whole plant thoroughly.
