I was not really impressed with the gardens. Granted, we were there August 7th and its been really dry. But, there were weeds everywhere and the flower beds were very overgrown. Thank goodness I had a coupon to get 1 child in free (look online and you can normally find coupons for this place). It was $24 for me and my 3 kids and we'd had enough after an hour.
I'd recommend going in the spring when things are still alive!