No gates, admission is free. Tulips are best near end of April, beginning of May. Passed down since the 1800's there are over 80,000 tulip bulbs not to mention the other interesting plants. Read more.
When you tour the Myriad Botanical Garden's Crystal Bridge, a tropical greenhouse with 1,000+ species of plants and lush waterfalls, keep an eye out for butterflies and free roaming amphibians. Read more.