An outpost of the National Tropical Botanical Garden (which also runs the Allerton and McBryde gardens on Kauaʻi), Kahanu Garden contains the largest collection of breadfruit species in the world, with over 127 varieties. Breadfruit is significant because, as its name suggests, its nutritional value makes it a dietary pillar, and hence a weapon to combat global hunger.
The garden also contains a living catalog of so-called canoe plants, those essentials of traditional life brought to Hawaii in the canoes of Polynesian voyagers, along with a hand-crafted canoe house that is another step back in time.