Coastal Maine Botanical Gardens, Boothbay, Maine
Website: http://www.mainegardens.org/
The photos are in no order, other than the first one, which is my favorite. We have been to this garden five times, first visit in 2012, when the garden was five years old. There are many walking paths, a large area devoted to children, numerous types of gardens, ponds, small waterfalls, a boat dock where you can take an hour long trip around the lake, and beautiful flowers to enjoy.
Different flowers for the cats, depending on the season.
The four photos below were taken on our first visit in 2012. I'm sure the shrubs, plants and trees are much larger. And, the parking lots as well.