Photo by Peter Juhl
Black-throated green warbler,
Photo by John Harrison
—Rock-Balancing Demo: On Sunday, Aug. 28, 11 a.m. to 12:30 p.m., "Center of Gravity" photographer and balanced-rock sculptor Peter Juhl will demonstrate his rock-balancing skills. No glue, magnets or artificial supports are used in creating these gravity-defying sculptures—some of which only last long enough for a photo to be snapped. Visitors can check out the exhibit while watching the balancing act. Arboretum Restaurant Gallery.
—SummerHouse: Get fresh local produce daily from 10 a.m. to 6 p.m.
—Enjoy hot spots in bloom, including the annual garden, hosta glade, hydrangeas, rose gardens and perennial gardens. Meanwhile, sign up for bloom/fall color alerts.
Arb naturalist Matt Schuth reports that warbler migration is happening: Twelve species have been reported, including mourning, Wilson's, pine, black-throated green, golden-winged, Northern waterthrush and blackburnian.
In other bird news: Many hummingbirds are feeding on jewelweed along the boardwalk (where flowers in bloom now—along both Green Heron Trail and boardwalk—include white snakeroot, purple-leaved willow herb, white flat-topped aster, New England aster, green-headed coneflower, blue vervain, wild cucumber).
We're seeing many least skipper butterflies. The meadow katydid is singing, and a brood of Eastern phoebes are calling at the bridge below the waterfall.
—School time: Registration is now open for school programs for 2011-2012 school year. Consider Pea Pods for Preschoolers Fall Series on Tuesdays, Oct. 4 - December 6, 9:30-11:00 am. Call (952) 443-1422 for questions and to reserve dates.
—Scarecrows on Parade: Enter this great juried exhibit by Aug. 31!
—Name the rose: There's still time to enter your name for our new pink rose cultivar!
—Book lovers: Drop off your gently used books (by Sept. 19) for the Andersen Horticultural Library Book Sale (October 7-9). Call the library for more information: (952) 443-1405.