Take a walk and spot beautiful butterflies
Bay Area butterfly expert Don Mahoney will share insights about the colorful winged creatures on June 30 at Quarryhill Botanical Garden. He will help identify a host of butterflies inhabiting the garden, including Pipevine Swallowtail, Painted Lady, Red Admiral, Buckeye, Skipper, Tiger Swallowtail, and West Coast Lady. The garden has a few gentle hilly trails so participants should wear walking shoes and bring water and binoculars if they have them. Mahoney is the president of the Hallberg Butterfly Gardens and curator at the San Francisco Botanical Garden. He earned a Ph.D. in Wildland Resource Science from the University of California at Berkeley. Advanced registration is required. The fee is $15 for members and $20 for non-members. To register, visit quarryhill.org, 10 a.m. to 11 a.m., 12841 Sonoma Highway, Glen Ellen. 707-996-3166.
Butterfly garden welcomes visitors
The Hallberg Butterfly Gardens is celebrating its 21st anniversary Sunday with a free open garden day — no reservations required. There will be children’s activities, walking tours and bird and butterfly sightings. The garden was established as a butterfly sanctuary by the late Louise Hallberg on the family farm settled by her grandparents in the 1880s. She lived on the farm her entire life until her death at age 100 last year. For more information, go to hallbergbutterflygardens.org. 10 a.m. to 4 p.m., 8687 Oak Grove Ave., Sebastopol. 707-823-3420.
Willowside plant sale
There will be thousands of plants available for sale today at Willowside School Nursery. They include a variety of low water and drought tolerant perennials, California natives, a multitude of succulents, grasses, salvias and more. The price is $4 for 1 gallon containers, and $25 and up for more than 40 varieties of specialty Japanese Maples that are 3 to 6 feet tall. 9 a.m. to 2 p.m., 5299 Hall Rd., Santa Rosa. 707-545-0171.
Summer pruning workshop
Lightly trimming your rose bushes can increase their late-season bloom. The Redwood Empire Rose Society will hold a summer pruning workshop June 21 to show how to do it correctly for the best results. The free hands-on class will be conducted by rosarian Karen Ernsberger. Light refreshments will be served. 5-7 p.m. at the Luther Burbank Art and Garden Center, 2050 Yulupa Ave.
Visit coastal gardens
Celebrate the solstice on the Mendocino Coast June 23 by taking a self-guided tour of some of the region’s most intriguing gardens.
The Garden Conservancy-sponsored Open Garden Day features three private gardens. Visitors can choose to explore one garden, two gardens or all three.
Among the open gardens is The Moss Garden, a multi-roomed landscape with distinct spaces set apart by rammed earth walls and boasting a heather garden, an orchard and ocean views (45145 Brest Road, Mendocino.) Also welcoming visitors are Cherie Christiansen and Franz Arner. The couple have a sculpture garden and studio in a woodland setting surrounded by clumping bamboo, rare rhododendrons and camellias, vegetable and herb gardens, a rock garden, a pond with a waterfall and rose and cutting gardens (8085 Outlaw Springs Road, Mendocino).
The Open Day is also a rare opportunity to visit the private gardens of Deborah Whigham and Gary Ratway of Digging Dog Nursery in Albion. Ticket-holders can visit the gardens surrounding the nursery throughout the day. As a special offering, they may also take a guided tour at 1 p.m. — led by Whigham — of the couple’s private gardens, which were featured in The Garden Conservancy’s “Outstanding American Gardens’ book. At 3 p.m. Whigham and Japanese maple expert Patricia Smyth, who owns Essence of the Tree, will give a talk and demonstration on selecting the perfect Japanese maple and companion plants for a container that will look good throughout the seasons. The nursery is at 31101 Midde Ridge Road, Albion.