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Click here for Upcoming Events

West Hawai'i Master Gardener Helpline

Days: Tuesday and Thursday 

Time: 9 am to noon 

Phone: (808) 322-4893 

email: konamg@hawaii.edu 

Place: Kona Cooperative Extension Service Office, 79-7381 Mamalahoa Hwy. in Kainaliu (across from Aloha Theater)


072021 MG Class Info Sign




090421 Plant Sale Flyer




MGVanilla Orchid Flyer637357468784260545WHMG Plant Sale


West Hawai'i Master Gardener Links

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West Hawaiʻi Master Gardener Coordinator

Ty McDonald





Ty McDonald 

Kona CES Office

79-7381 Hawaii Belt Road
Kealakekua, HI 96750-7911


Phone: (808) 322-4884
Fax: (808) 322-4895
Email: tym@hawaii.edu

Our Mission

The Mission of the University of Hawaii Master Gardener Program is to provide the public with unbiased, research based information and sustainable management practices in tropical horticulture suitable for home gardens, local landscapes, urban environments and the community. The Master Gardener program is an educational outreach program administered by the University of Hawaii Cooperative Extension Service. 

Interested in Becoming a Master Gardener? Join Us!


Each person enrolling in the Master Gardener Volunteer Training Program commits to completing 39 hours of instruction plus 6 field trip hours, an open-book Midterm and Final Exam, plus 40 hours of volunteer service within 12 months of completing the Master Gardener instruction. To continue being Certified as a Master Gardener, on-going service of 30 hours of volunteer time is required every year. Classes are held at The Kona Cooperative Extension Service office in Kainaliu, with field trips and workshops in the area. 

Please check back here in Oct./Nov. for the online application. Thank you. 

Plant Sale - Tuesdays/Thursdays 9AM to Noon. 

Interested in growing your own vanilla? $25 cash or check. Vanilla Orchids, Dragon Fruit, Curry Tree, Dracaena. Click for Details.

The West Hawai’i Master Gardener Program is offering a limited number of locally propagated vanilla orchids for sale to the community. These exotic vines, potted in one-gallon containers, grow well from sea level to about 4,500-foot elevation. They prefer part shade and do best with consistent moisture and regular fertilization. A detailed care sheet will be provided with each plant.

What we do

Master Gardeners expand the outreach efforts of the Cooperative Extension Service by interacting with the gardening public in a variety of ways:

  • Master Gardener Helpline
  • Information booths at agricultural festivals and farmers’ markets
  • Educational programs for gardening groups (school age to seniors)
  • Sustainable Gardening presentations at the Kona Historical Society Living History Farm
  • Growing plants like vanilla orchids in our nursery
  • Selling UH seeds, fruit fly traps, lures & bait, and live plants at outreach events
  • CTAHR Open House events
  • Educational programs and field trips for Master Gardeners
  • And more!

The Master Gardener Helpline

West Hawai‘i Island Master Gardeners are trained volunteers who specialize in giving advice and assistance to home gardeners on pests, diseases, and cultivation of plants in Hawai‘i. Research-based horticultural information is provided primarily through the Master Gardener Helpline. Home gardeners can email questions and photos, call during office hours and ask to speak to a Master Gardener, or drop by the office in person. Helpline hours are Tuesday and Thursday from 9AM to noon.

Vanilla Orchid Project

West Hawaiʻi Master Gardeners are growing vanilla orchids in our greenhouse. The Vanilla Orchid Team pollinate the orchids as they bloom, fertilize the plants, harvest and process the vanilla beans, and divide the plants as necessary. We sell some of the vanilla orchid plants at our outreach events.

Propagating Plants From Seeds Made Easy

With many people starting vegetable gardens for the very first time it’s important to understand the basics of propagating plants by seed. Visions of a bountiful harvest of fresh vegetables intoxicating the beginning gardener’s mind at planting may lead to sowing seed with merely a “wet it and forget it” consideration. 

Avid gardeners of all ages and stages, from fuzzy neophytes to gnarled veterans, never lose their fascination with the seed germination process, where seeds sown beneath the soil surface later emerge, full of life, as new seedling plants capable of independent existence.

Three conditions must be met for successful germination. Click here for more