Over 75,000 people visit Oahu botanical gardens every year. Normally, guided tours are provided to enhance the knowledge of the visitors about different types of plants in the botanical garden. Oahu has a number of botanical gardens including Foster Botanical Garden, Ho’omaluhia Botanical Garden, Koko Crater Botanical Garden, Lili’uokalani Botanical Garden, and Wahiawa Botanical Garden. Foster Botanical Garden has several areas that you can visit. The Lyon Orchid Garden offers a large selection of orchid species from the old and new worlds. The main terrace of the Foster Botanical Garden was constructed in the 1853. You can view primitive plants at the prehistoric glen. The economic garden exhibits plants that are selling commercially such as herbs, dyes, and spices. The butterfly garden offers you an opportunity to view the butterflies in Hawaii. There is a section of the garden called Exceptional Trees that displays 24 trees that are considered as outstanding in the botanical garden.
Ho’omaluhia Botanical Garden was originally established to protect the Kaneohe region from flood. Some of the facilities you can find at the botanical garden include a campground, and botanical library. The plants are exhibited according to various geographical regions including Africa, Polynesia, India, Philippines and etc. The first place you should visit is the Visitor Center. The Visitor Center offers information on to obtain permit and car passes. Several types of recreational programs are organized including hiking, camping, watching the clouds and etc. If you are not familiar wit the trail at the garden, you can participate in the guided nature hikes on Saturday and Sunday. Campers can set up their tents at Kahua campground. Some of the things campers are to bring include insect repellent, sleeping gear, torchlight, stove and etc. Visitors can also picnic at the site nearby to the Visitor Center.
Koko Crater Botanical Garden covers a basin that measures 60 acres. The garden does not have facilities such as restroom, accommodations, and etc. You can jog and exercise on the unpaved trails at the garden. The main feature of the garden is the plants on the Koko Crater. On the outer part of the crater, you can notice a large collection of plumeria, bougainvillea, and etc. Visitors can follow the loop trail to explore the dry land plants from different parts of the world. The plants are grouped according to the geographical regions including Americas, Africa, Madagascar, Hawaii and etc. The plants at the Koko Crater provide substances that are used for food, dyes and etc. You should never put any plant in your mouth.
Lili’uokalani Botanical Garden used to be a picnic spot of Queen Lili’uokalani. Queen Lili’uokalani is the last monarch that reigns in Hawaii. At the end of her reign, she bequeathed the land to the general public. The garden offers a variety of native Hawaiian plants. It also houses the Nuuanu Stream and waterfalls. You can visit the garden from 7 a.m.- 5 p.m.
Wahiawa Botanical Garden is a 27-acre garden that offers a large range of native plants, Hawaiian plants and epiphytic plants. There is a forest ravine inside the garden.