EVENTS

"GROWING HERBS IN POTS," workshop, 10-11 a.m. March 13, Foster Botanical Garden; $3 residents/$5 visitors; reservations required; 621-5463.

FREE GARDEN TOUR of the Amy Greenwell Ethnobotanical Garden's native Hawaiian plant collection, a chance to learn about the plants' traditional cultural uses; 10-11:30 a.m. March 13; Kona, Big Island; information, 808-323-3318.

SECOND SATURDAY AT THE GARDEN, one of a series of events offering a chance to stroll the garden and learn about tropical gardening from certified Hawai'i master gardeners and center volunteers; 9 a.m.-12 p.m., March 13; University of Hawai'i, Urban Garden Center, Pearl City; (also: melon fly eradication demonstrations, 9 a.m. and 10:30 a.m.); free; www.ctahr.hawaii.edu/ougc, 453-6055.

LAUHALA TURTLE-MAKING WORKSHOP, two-session class, 9:30 a.m.-1 pm. March 17 and 18, Foster Botanical Garden; $10 ( in addition to garden admission each day) (packed lunches suggested); reservations, 522-7064.

LANI-KAILUA OUTDOOR CIRCLE SPRING PLANT SALE, sale of plants grown by, and to benefit, Women's Community Correctional Center's "Learning to Grow" program; including palms, gingers, crotons, gardens , ti, bromiliads, herbs and other plants; 8-11 a.m., March 20, Kailua Elementary School (next to library); also plant experts on hand for questions; 263-4040.

"USES OF HERBS" WORKSHOP, for cooking, insect repellents, medicinal uses and more, 10-11 a.m. March 20, Foster Botanical Garden; garden admission fee ($3 residents; $5, non-resident); reservations, 522-7064.

"SUSTAINABLE LANDSCAPE DESIGN," to turn lawn or lānai into an oasis of food, medicinal herbs and other plants, 9 a.m.-2 pm. March 20, Lyon Arboretum; $40; registration, 988-0461; www.hawaii.edu/lyonarboretum.

ONGOING

FREE GARDEN MULCH, 9 a.m.-3 p.m. Saturdays, Hālawa Xeriscape Garden, 99-1269 Iwaena St.; self-service; www.boardofwatersupply.com, 748-5041.

NIAULANI NATURE WALK, guided tour through an old-growth forest; 9:30 a.m. Mondays; Volcano Art Center's Niaulani campus, Volcano Village, Big Island; 808-967-8222, www.volcanoartcenter.org.

TUESDAYS AT KANAHĀ, weekly beach cleanup and plant maintenance, coordinated by Community Pride at Kanahā Beach Park, Maui, 8-10 a.m. Tuesdays, at the park; Valerie Vines Magee, 808-264-1454.

MĀNOA HERITAGE CENTER, discover an old Hawaiian heiau and native plants while learning Mānoa Valley's history; 9 a.m.-4 p.m. Tuesdays-Saturdays; Mānoa Heritage Center; $7 general, $4 seniors and military, students free; visits and tours by reservation only: 988-1287, www.manoaheritagecenter.org.

HO'OMALUHIA PRESCHOOL NATURE HOUR (for ages 3-5) with stories, songs, crafts and nature hikes (optional picnic lunch); 10:30 a.m., third Tuesday monthly; from visitor center; recommended: walking shoes, insect repellent, rain gear; information, 233-7323

WEED & POT CLUB at Maui Nui Botanical Garden, 8:30-10:30 a.m. Wednesdays, 150 Kanaloa Ave., Kahului, Maui, to do beautification and maintenance work; tools, gloves, drinking water provided; wear shoes; 808-249-2798.

BOTANICAL DRAWING AND PAINTING, rendering of plants, flowers, seeds and pods from the garden; 9:30 a.m.-noon Wednesdays, Ho'omaluhia Botanical Garden, Kāne'ohe; recommended: No. 4 round brush, bristol paper, watercolor set or pencils; free; reservations, 233-7323.

SECOND SATURDAY AT THE GARDEN, stroll the garden and learn about tropical gardening from experts and center volunteers; 9 a.m.-12 p.m., second Saturday monthly; Pearl City Urban Garden Center; free; www.ctahr.hawaii.edu/ougc, 453-6055.

MAKIKI FOREST RESTORATION PROJECT, volunteers needed for Makiki Watershed Awareness Initiative forest restoration project, 9 a.m.-2 p.m. fourth Saturday of each month; weed, pick up branches, plant, water and fertilize; bring long pants, long-sleeved shirt, shoes or boots, gloves, insect repellent, water and lunch; meet at Makiki forestry base yard above new Hawaii Nature Center (from Makiki Street, take a left onto Makiki Heights Drive; entrance is before first hairpin turn); 973-9782.

HO'OMALUHIA FAMILY CATCH AND RELEASE FISHING, 10 a.m.-2 p.m. Saturdays and Sundays, yearlong, Ho'omaluhia Botanical Garden, Kāne'ohe; recommended: walking shoes, insect repellent, rain protection, barbless hooks and fishing gear; free; reservations, 233-7323.

LYON ARBORETUM WORKDAY, weeding and garden maintenance with arboretum grounds crew, first Saturday monthly; times/information: 988-0456.

NIAULANI FOREST WORKDAY, volunteers needed, 9 a.m.-12 p.m., third Sunday of each month; Volcano Art Center, Niaulani campus, Volcano Village, Big Island; 808-967-8222.

WHAT'S BLOOMING/WHAT'S BEARING FRUIT WITH DAVID ORR, walking tour of Waimea Valley with botanical collections specialist David Orr, 2-3 p.m., first and third Sundays; recommended: snack, insect repellent, sunscreen, hat, water and sturdy shoes; free with paid park admission; reservations, 638-7766.

LYON ARBORETUM classes and workshops on invasive plants, organic gardening, traditional Hawaiian crafts, flower arranging, garden photography, field sketching and nature journaling, special children's classes and more, at the arboretum, 3860 Mānoa Road; schedule at www.hawaii.edu/lyonarboretum; register: 988-0461.

LYON ARBORETUM GUIDED TOURS, view plants of the rain forest, and tour the arboretum's Ethnobotany Garden, Spice Hill, native plant collection and waterfall; 10 a.m. Mondays-Saturdays; at the arboretum, Mānoa Valley; $5; reservations, 988-0461.

Send announcements, at least 10 days before event, with contact name and phone number, to: Island Life, Garden Calendar, The Advertiser, 605 Kapiolani Blvd., Honolulu, HI 96813; islandlife@honoluluadvertiser.com, with "Garden Cal" in the subject line; or fax 525-8055.