Trained Master Gardeners are available to answer your gardening questions. When a question requires research, the caller’s name and number is taken, and the person is contacted after the correct answer is determined. Contact your local Master Gardener Office to get specific instructions for bringing in samples.

The helplines are closed until further notice.  We may still accept questions via email, but no walk-in service is provided. Calling is discouraged because we may not be able to answer the phone.

Kaua'i Master Gardener Helpline

Day: Saturday
Time: 9:30 am to 1 pm
Phone: (808) 274-3471
Place: Kaua'i Community Farmers Market at Kauaʻi Community College, 4374-4386 Pikake Street, Lihue, HI 96766

O'ahu Master Gardener Helpline

Day: Wednesday
Time: 9 am to noon
Phone: (808) 453-6055
Place: Pearl City Urban Garden Center, 955 Kamehameha Hwy.

Maui Master Gardener Helpline

Day: Monday, Wednesday, Friday
Time: 9 am to noon
Phone: (808) 244-3242 ext. 228
Place: Kahului Cooperative Extension Service Office, 310 Kaahumanu Ave., Bldg 214

West Hawai'i Master Gardener Helpline

Day: Tuesday and Thursday
Time: 9 am to noon
Phone: (808) 322-4892
Place: Kona Cooperative Extension Service Office, 79-7381 Mamalahoa Hwy. in Kainaliu (across from Aloha Theater)

East Hawai'i Master Gardener Helpline

Day: Monday & Friday
Time: 9 am to noon
Phone: (808) 981-5199
Place: Komohana Research & Extension Complex, 875 Komohana St. in Hilo