Tuesdays are free! Other wise it's $12 for adults. On hot days there are sufficient shady areas and a wonderful pond with bench, waterfall with overlook, and pavilion for weddings or just quiet respite. Gift shop isn't anything to get excited about. We went on a Thursday morning and almost had the place to ourselves except for a few mom's who obviously take their children there all the time since the kids knew exactly where the children's garden was. That was great to see (the kids and the children's garden)! The plants are separated into either plant type or country of origin. Very well done. Especially enjoyed the Mexico area and plant dancers.