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East Hawaii Master Gardener Program

The Master Gardener Helpline

Hawaii Island Master Gardeners are trained volunteers who specialize in giving advice and assistance to home gardeners on pests, diseases and cultivation of plants in Hawaii. Research-based horticultural information is provided primarily through the Master Gardener Helpline. Home gardeners can call during office hours and ask to speak to a Master Gardener or drop by the office in person.

Helpline hours:

Mondays and Fridays: 9:00 am – 12:00 pm


Komohana Research and Extension Complex
Cooperative Extension Service
875 Komohana Street
Hilo, Hawaii  96720

Phone:   808-981-5199

Hawaii Island Master Gardeners
Photo credit: Nancy Hosticka