» Make Your Own Whimsical Hanging Terrarium: 6-7:30 p.m. Feb. 11 at WaterWorks Garden Supply, 133 N. Broadway, Green Bay. Candelaria Toutloff of Waterworks Garden Supply on the carnivorous, succulent and air plants that can be used, and then create your own 5½-inch terrarium and add personalized beads to the hanger. $52, $45 GBBG members. Registration required: gbbg.org.
» Backyard Mason Bees: 5:30-6:30 p.m. Feb. 19 at Ag & Extension Service Center, 1150 Bellevue St., Green Bay. Learn about the important pollinator and friendly cousin of the honeybee and how to select, place and make nesting materials to help increase the quantity and quality of fruits and berries. Presented by Linda Warren and Adrian Konell, who have been raising mason bees for 10 years. Free; registration required at (920) 465-8512. Presented by NEW Master Gardeners.
» Cottonless Cottonwoods Sale: Cuttings of “Sir William,’’ a cottonwood variety that does not produce cotton and is resistant to many of the problems associated with typical Eastern cottonwoods. Available for $2 each in late April from NEW Master Gardener Mark Sprague. Must order in advance by calling (920) 391-4653; leave a message with your name, address, phone and number of cuttings.
» Jersey Knight Asparagus Crowns: The Gardeners Club of Green Bay taking pre-orders for asparagus crowns for $1.25 each and for potted 90-day sweet potatoes for $1. (920) 468-8693.
Have a gardening going-on for our calendar? Dig up the details and e-mail them to email@example.com.