Mystery Plants

We have been working on our yard. We had quite a bit of work to do we bought our home from an older couple and they yard had become too much work for them so everything had a ton of weeds and was overgrown. They did a really great job on their landscaping though. It is really looking great now that we spruced it up. We still have alot of work to do though. I have these great plants/flowers in my yard but I don't know what they are. Do you??? I am hoping someone will know!!