Ho'omaluhia Botanical Garden, Botanical garden in Kaneohe, United States.

Ho'omaluhia Botanical Garden is a large garden in Kaneohe with plants from tropical regions worldwide. Collections are organized by geographic origin, including areas like Africa, Hawaii, and Polynesia.

The garden was built in 1982 by the United States Army Corps of Engineers as part of a flood control project for the Kaneohe region. This origin shows how a practical infrastructure project became a public space for the community.

The name Hoʻomaluhia is Hawaiian, usually rendered as "a place of peace and protection"; the garden was built by the U.S. Army Corps of Engineers as flood protection for Kāneʻohe. Its collections group plants by origin — Africa, Hawaii, India and Sri Lanka, Malaysia, Melanesia, the Philippines, Polynesia and the tropical New World — with emphasis on Hawaiian and Polynesian natives, palms, aroids and heliconias.

The garden is closed on Thursdays, Christmas Day and New Year's Day, and entry is free. Walking trails run through the grounds, with a day-use area and campgrounds available. The visitor center holds a lecture room, exhibition hall, workshop and botanical library.

The 32-acre lake is fed by the Luluku stream system and doubles as the garden's flood-control reservoir, the reason the Army Corps of Engineers built the site in 1982. The Açaí tree, rarely seen in America, grows among the collections.