Kahanu Garden photo
ParkHawaii, US

Kahanu Garden

Kahanu Garden offers a unique journey into Hawaiian ethnobotany and ancient culture.

About

Kahanu Garden offers a unique journey into Hawaiian ethnobotany and ancient culture. This remarkable botanical garden, part of the National Tropical Botanical Garden, is a living museum dedicated to the rich relationship between people and plants of the Pacific. It stands out not only for its botanical collections but also as the home of Piʻilanihale Heiau, the largest ancient temple structure in Polynesia, making it a profoundly significant cultural site.

Visitors can explore the world's largest collection of breadfruit (ʻulu) cultivars, featuring over 150 varieties, alongside the Canoe Garden, which showcases plants brought to Hawaiʻi by early Polynesian voyagers, such as kalo (taro), ʻuala (sweet potato), and maiʻa (banana). The garden also preserves one of Hawaiʻi's last undisturbed hala (Pandanus tectorius) forests and maintains important collections of native Hawaiian plants. These diverse collections provide a tangible link to the agricultural practices and plant resources essential for survival in ancient Hawaiʻi.

A visit to Kahanu Garden provides a serene and educational experience, allowing guests to step back in time and appreciate the deep cultural roots of the Hawaiian people. The dramatic coastal views, combined with the botanical wonders and the awe-inspiring Piʻilanihale Heiau, create a memorable outing. It’s a place where history, culture, and nature intertwine, offering a unique perspective on Hawaii's heritage and the vital role of plant conservation. Eager to name that creature? Identify any animal you find during your visit using the Snappit app.

The land where Kahanu Garden now thrives holds a deep history, dating back to 1848 when King Kamehameha III granted the 464-acre property to Chief Kahanu. Over the years, the area underwent significant changes, transforming from a sugar plantation in the 1860s to cattle pastures after 1946. In 1974, a pivotal moment occurred when descendants of Chief Kahanu, along with Hāna Ranch, deeded 61 acres to the National Tropical Botanical Garden (NTBG). This agreement stipulated that NTBG would restore Piʻilanihale Heiau, share it with the public, and ensure perpetual care for this sacred site and the family graves located on the land. The garden has since expanded to 293 acres, later cited as 484 acres, and continues its mission of biocultural conservation in the Pacific, with its core being the Piʻilanihale Heiau, which began construction around the 13th century and was registered as a National Historic Landmark in 1964.

What to do here

Embark on a self-guided tour with an informative pamphlet to learn about the plants and their cultural significance. Consider a guided tour for a deeper understanding of ancient Hawaiian stories and archaeological features. Enjoy sweeping ocean views from the rugged coastline.

Seasonal info

The dry season typically runs from May to October, which might offer more comfortable visiting conditions.

Accessibility

While specific wheelchair accessibility information is not detailed, the recommendation for comfortable walking shoes suggests that some areas may involve varied terrain. Paths are available for walking through the garden.

Don't miss

1

Piʻilanihale Heiau

The largest ancient temple structure in Polynesia and a National Historic Landmark.

2

ʻUlu (Breadfruit) Grove

Home to the world's most diverse collection of breadfruit varieties.

3

Canoe Garden

Features ethnobotanical plants brought by early Polynesian voyagers, such as taro, sweet potato, and banana.

4

Hala Forest

One of Hawaiʻi's last undisturbed native hala forests.

Wildlife you might spot

12

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Good to know before you go

Wear appropriate footwear

Comfortable walking shoes are highly recommended as you will be exploring expansive grounds.

Stay hydrated

Bring bottled water, especially during warmer months, to stay refreshed.

Protect yourself from the elements

Apply mosquito repellent and sunscreen, and consider wearing a hat for sun protection.

Respect cultural sites

Do not climb on or disturb Piʻilanihale Heiau or other rock structures, as they are sacred ancestral sites.

Consider a guided tour

For a deeper cultural context and understanding of the land's stories (moʻolelo), guided tours are highly recommended, often led by local experts.

Make reservations

Reservations are required for guided tours and appreciated for self-guided visits.

Arrive early

The garden closes at 3 PM, with last entry usually an hour before, so an earlier arrival allows for a more relaxed visit.

Frequently asked questions

Kahanu Garden is generally open Monday through Saturday from 9:00 AM to 3:00 PM for self-guided tours. Guided tours are available on specific days and times, often requiring reservations. It is closed on Sundays.
No, visitors are not permitted to walk on the Piʻilanihale Heiau due to its sacred historical significance and ongoing preservation efforts. The site is best viewed from designated paths, respecting the cultural protocol established for this irreplaceable ancestral gift.
Kahanu Garden boasts the world's largest collection of ʻulu (breadfruit) varieties, comprising over 150 types. It also features a "Canoe Garden" with plants brought by early Polynesian settlers, such as kalo (taro), maiʻa (banana), and kō (sugarcane), and preserves a rare, undisturbed hala (Pandanus) forest.

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