Harold L. Lyon Arboretum | A University of Hawaii Research Unit

ALOHA!

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. The 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.

To learn more, click on the topics on the navigation menu above.

VISIT THE ARBORETUM

Please read the following information

Open to the public Monday through Friday from 9 am until 3 pm, closed on weekends, State and Federal holidays .
Admission is free, but donations are greatly appreciated. The suggested donation amount is $10 per person.
Reservations are required.
Reservations open only one week in advance on the Friday before.
Organized groups (Schools, Homeschools, Mommy Groups, Churches, Business groups, etc.) with 8+ participants are REQUIRED to make arrangements with the Lyon Education Department (email Lyonedu@hawaii.edu.
- K-12 schools and college groups can visit our K12 EDUCATION PAGE or UNIVERSITY/COLLEGE GROUPS for more information about our school tours and to request a tour. All school tour requests must be made through our field trip request form found on the education webpage.

For reservation questions, call the MAIN OFFICE at (808) 988-0456. Mahalo!

Make your reservation on Eventbrite at the link below.

Click Here to Book Your Visit

Last updated: 5/23/24

ANNOUNCEMENTS AND UPCOMING CLOSURES

Community Classes and Events

Spring Plant Sale!

Get ready for the Spring Plant Sale! Happening Friday, May 9th and and Saturday, May 10th, from 9:00 am – 3:00 pm.

More information about our plant sales in general, click here.

For Spring Plant Sale information, click here.

Sign-ups for reserving a spot opens on April 14th at 10:00 am.

Camps and School Tours

Summer Camp 2025: Registration for our Nāhele Explorers Camp is April 25th. More information here: https://manoa.hawaii.edu/lyon/2025/04/03/summer-2025-nature-camp-at-lyon/

School Tours: You must fill out the online request form for school tours for summer programs, college groups, which is now open. We do not take requests over the phone or email. More info here: LYON SCHOOL TOURS

UPCOMING ALL DAY CLOSURES:

Friday, April 11th: Closed for internal operations
Friday, April 18th: Closed to the public in observance of Good Friday

Click here to view the Events and Closures Calendar