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Joseph Rock Arboretum

A training site for new forest creators

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What’s blooming in the Garden 2026!

What’s blooming in the Garden 2026!

Plumeria

Plumeria

Let’s wait and see what else we will find!

Our Mission

The mission of the Joseph Rock Arboretum is to collect, propagate and preserve flora of Hawaii, and around the world. We are committed to protecting and preserving the most rare species of the Hawaiian dry forest.
We are committed to teaching people how to care for natural environments through hands on seed collection, seed banking, propagation and field work.

Our Vision

To provide the next generation with a healthy Hawaiian dry forest and abundant seed resources for future restoration.

To support new forest creators as future care takers of the planet.

Sponsor an Internship

Please support an intern! We have a waiting list of very good people from all over the world who want to do forestry and seed bank training. Any donation will help. In all the ways seen and unseen, we truly thank you.

DONATE HERE!

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Joseph Rock Arboretum is fiscally sponsored by the Tiny Seed Project, Inc. 501(c)3. Your donation is tax-deductible.

Fiscally sponsored by the Tiny Seed Project

Tiny Seed Project is a 501(c)3 tax-exempt organization and your donation is tax-deductible within the guidelines of U.S. law.

Mission

The mission of the Joseph Rock Arboretum is to collect and study trees, shrubs and plants of Hawaii and around the world. Its goal is to teach people how to care for natural environments through hands on seed collection, seed banking, propagation and field work.

Our Vision

To support new forest creators as future care takers of the planet.

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