Foster Gardens, Ho'omaluhia Botanical Garden, Wahiawa Botanical Garden and Lyon Arboretum on Oahu, open from noon to 4 p.m.
The three gardens of the National Tropical Botanical Garden - Lawa'i and Limahuli on Kauai, and Kahanu on Maui, open from noon to 4 p.m. to those who make advance reservations. Call (808)-332-7324 for Lawa'i, (808)-826-1053 for Limahuli and (808)-248-8912 for Kahanu.
The Maui Botanical Gardens in Kahului on Maui, 9 a.m. to 2 p.m. Call Lisa Raymond at (808)-878-3564 for more information.
The Amy B.H. Greenwell Ethnobotanical Garden on the Big Island, offers tours from 9 a.m. to noon. Call (808)-323-3318 for reservations.
A demonstration on "Chysanthemum Propagation" will follow, and volunteers will answer any home gardening question.
The center is at 962 Second St. in Pearl City, and will be open until noon that day. For more information, call 453-6050.
The meeting takes place at St. John Hall, room 011 on the UH campus, 3190 Maile Way. For more information, call 956-3925.
The society is also planning a half-day field trip to view native plants at the Koko Head Ihi'ihi Lauakea Preserve. Meet at 8 a.m. March 15 outside Foodland at the Koko Marina Shopping Center. Bring water and sunscreen. Call Aaron Lowe at 973-9782.