I am sorry for this delayed reply to your gardening question. The spring rush has brought a deluge of questions and we are working hard to catch up!
I don't think that part about changing colors is right. I have grown several of the wave petunias and they do fine producing blooms well into summer if you keep the soil moist and fertilize the plants with a soluble plant food such as Miracle Gro at the label rate. Most Home Depot garden centers should carry the wave varieties.
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
Q&A Library Searching Tips