Lyon Arboretum is part of the University of Hawaiʻi and a public botanical garden. We are nestled in the back of Mānoa Valley, just five miles from the bustle of Waikiki. Lyon Arboretum has over seven miles of hiking trails and boasts more than 6,000 taxa of tropical and sub-tropical plants on our nearly 200 acres.

We are open to the public Monday through Friday from 9 am until 3 pm.

Visit the Arboretum

(Last updated: 5/24/22)

Reservations are required. Make your reservation on Eventbrite at the link below.

Admission is free, but donations are greatly appreciated. The suggested donation amount is $10 per person.

View our COVID19 safety policies here

Due to the frequently changing conditions of the ongoing pandemic, we usually only open reservations a week in advance, often on the Friday before.

Questions regarding reservations can be directed to our Main Office at (808) 988-0456. Mahalo!

Upcoming closures

Lyon Arboretum is closed on Saturdays and Sundays as well as all state and federal holidays.

We will be closed to the public all day on:

  • August 19, 2022 – Holiday Observance
  • August 25, 2022 – Internal operations
  • September 5, 2022 – Holiday Observance
  • September 22, 2022 – Internal Operations
  • October 10, 2022 – Internal Operations
  • November 11, 2022 – Holiday Observance
  • November 24, 2022 – Holiday Observance
  • December 26, 2022 – Holiday Observance
  • January 2, 2023 – Holiday Observance

Recent News

View all recent posts

  • Lyon Arboretum recieves Global Genome Initiative (GGI) Award
    Lyon Arboretum’s Grounds & Collections Department has been awarded (BGCI/GGI/2020/23) funds from the Global Genome Initiative (GGI) Award Program! This GGI award program is made possible by the United States Botanic Garden (USBG) and Botanic Gardens Conservation International. The GGI program is spearheaded by the Smithsonian Institution in collaboration with partner organizations worldwide. The initiative …
  • 2022 Summer and Fall Community Classes
    Aloha! This page serves as our “master post” for all Lyon Arboretum community classes for the Summer and Fall of 2022. More classes will be added as details are finalized. (Classes that are currently accepting enrollment appear at the top of this page; classes that are at full enrollment or that have passed are recorded …
  • A Lasting Tribute to Lifelong Leaders
    Vernon and Yun Soong Jim were respected leaders in their community, world travelers, and longtime supporters of Lyon Arboretum. Their daughters, Arlene Chang, Velma Jim and Gwendolyn Wong have established an Endowment to benefit Lyon that represents their Mom and Dad’s values and respect for the work of Lyon Arboretum. “How do you create a …

Shop page now available

Information about our keiki kits, teacher resources, and even free downloadables is now available on our shop page. Check it out!