Adjacent to the gardens entrance is the Rainbow Walk, in which you can view a profusion of tropical trees, shrubs and perennial plants and even a cactus garden. More than a quarter mile of paved pathways wind through the acres of plants in the Rainbow Walk, but visitors are encouraged to meander off the walkways for a closer look or to take pictures.

In this area, you can see blooming anthuriums, azaleas, bougainvillea, bromeliads, crinums, gingers, heliconias, hibiscus, and many other tropical flowering perennials, ferns, shrubs, and trees.

Many varieties of orchids festoon the plants in the Rainbow Walk or cling to the Orchid Wall with new blooms popping out almost every day. Orchids may be near your feet on a stump, peeping out from a pile of logs or hiding on a low-growing bush. They're in almost every tree, living anywhere from a few feet off the ground to high in the canopy. The orchids come in almost every color from white to almost black. Many are very fragrant and one even smells like chocolate! See cattleyas, dendrobiums, phalaenopsis, vandas, and other species often with several varieties on the same tree.