Lowe's is a good option for a big-box store for all the usual home improvement, appliance, outdoor plants stuff. I really don't have a preference of either Lowe's or Home Depot. Wherever I live, whichever is more convenient to home is usually the one I choose. This go-round, Lowe's is my choice for convenience.
I mainly am posting a review to say that I was especially pleased with their outdoor plant selection this past Mother's Day weekend. They were all healthy, reasonably priced, and hands-down they had the healthiest, biggest bleeding heart plants of 380 Auction, Stanford Home Center and here. Yeah, that's just a random fact but thought I'd throw it out there. They also had calla lilies that the others mentioned did not.