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Joseph Rock Arboretum

A training site for new forest creators

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A garden and training site for future foresters…

Every garden is a reflection of its era and the focus areas that are botanically significant to the times. This arboretum has native Hawaiian dry forest that has been restored and is thriving. The dry forest is one of the most rare ecosystems in the world, and in Hawaii. There is only 10% left. This ecosystem is species rich and comprises many interesting trees, plants and vines. The arboretum also reflects land use models that are important in our world today.

We provide internships to land stewards who are interested in experiencing a comprehensive program to increase capacity, quality, and efficiency as they scale their projects.

We’re dedicated to giving you the very best training in seed collection, seed banking, nursery management and planting and maintenance. Please reach out if you want to know more.

Learn about one of the most rare ecosystems in the world!

Contact Us

Judge each day

not by the harvest

you reap but by

the seeds you plant.

– William Arthur Ward

To learn more about the history of the land you can see this storymap.

Offerings

School Group Tours

We care about the keiki in our community.
Our gift to the community is to host free tours to school groups- kindergarden through college. We have three tour options;
1)Garden tour- of dry forest, seed bank and nursery.
2)Seed collection
3)Botanical illustration

Service Learning

For local volunteers. Participate in the restoration cycle; from seed collection, banking, propagation, weeding, site preparation, out-planting, watering, monitoring. Ongoing volunteers will also be provided with educational materials.


Internship Request
Earth Awareness- Restoration Principles and Practices
We offer a high level two week training intensive for people visiting from outside of Hawai’i. This covers the entire restoration cycle. The cost includes housing in the garden, a small food budget, and training 5 days a week. Please inquire for more information.

News

What’s happening in the garden… 2025 events

Music and High Tea in the Garden, April 13, 2025, 11am-4pm
a fundraising event to support the building of the pavilion/event center! Including walking tour of the Hawaiian dry forest.
info@josephrockarboretum.org Space is limited, sign up to join.

We are located in Kailua Kona, Hawaii

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! 

Sign Up

Internship Request

 

Tour Request for Schools

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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