East Hawaiʻi Master Gardener Helpline 

If you are a homeowner and have a horticulture question or request Master Gardener services in East Hawaii, please contact the helpline:
 

Days: Friday
Time: 9 am to noon
Phone: 808-969-8203
email: himga@hawaii.edu
 

Komohana Research & Extension Complex

875 Komohana St.
Hilo, HI 96720  

East Hawai'i Master Gardener Links

• Home
• Helpline
• Frequently Asked Questions
• Pest and Disease Analysis
• Fruit Fly Information
• Little Fire Ant Information
• Useful Links
•  VMS
• Plant Sale

East Hawaiʻi Master Gardener Coordinator

If you are interested in becoming a Master Gardener please fill out the 2026 Interest Form.

(For homeowner horticulture questions contact the helpline 808-969-8203)

Laura Rieber

Komohana Research & Extension Complex
875 Komohana St.
Hilo, HI 96720
Phone: (808) 969-8272
email: laura.rieber@hawaii.edu

The Master Gardener Helpline

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 call during office hours and ask to speak to a Master Gardener or drop by the office in person. Home gardeners can also email us outside of helpline hours and we will get back to you when we are in the office on Friday. 

Also available are UH CTAHR Seeds for sale every Friday - see what is available CURRENT SEED LIST / PRICING

Helpline Hours

Fridays: 9:00 am – 12:00 pm

Location

Komohana Research and Extension Complex
Cooperative Extension Service
875 Komohana Street
Hilo, Hawai‘i  96720

Phone:   808 969-8203