Hi there. I bought two petunia hanging baskets at a nursery last week. I am dill event about watering as they are in almost continuous sun. While they look really pretty now, my worry is what will they look like in three weeks or so. In the past they have been initially pretty then boom all the flowers fall off at once due to their maturity and I am left with spindly vines. Sigh. They do not recover even in the fall and with fertilizer. Am I expecting too much or doing something wrong? I would like some color hanging all summer long. I will post picture tomorrow.