THURSDAY, AUGUST 22:

  • “Camden Heritage Trees” Program, at First Congregational Church, 55 Elm Street. Camden Garden Club invites everyone to have coffee and tea at 9 a.m., see a short 9:30 presentation by arborist Nancy Caudle-Johnson, then take her walking tour to see heritage trees.
  • Explore Will Bonsall’s Homestead and Gardens, 6 p.m. at Khadighar Farm, 39 Bailey Road in Industry, the penultimate stop in Maine Organic Farmers & Gardeners Association’s free Gather & Grow tour series. Learn more at mofga.org.

FRIDAY, AUGUST 23:

  • Belfast Garden Club’s Open Garden Days, 10 a.m. to 4 p.m., rain or shine. Troy Howard Middle School in Belfast shows off its vegetable, fruit and flower beds and its greenhouse. Students help grow more than 1,000 pounds of produce served by the cafeteria and for sale. $5.

SATURDAY, AUGUST 24:

  • “Identifying New England’s Edible and Medicinal Mushrooms,” from 9 a.m. to 3 p.m. at Hidden Valley Nature Center, Jefferson. Expert Greg Marley will teach you how to ID the ones you want and pass by the poisonous ones. Some cooking may be involved. He is the author of “Mushrooms for Health” and “Chanterelle Dreams, Amanita Nightmares.” Registration: MidcoastConservancy.org.

MONDAY, AUGUST 26:

  • Talk on Getting the Most from Cut Flowers, 11:30 a.m. in Schooner Cove Retirement Community’s library, Damariscotta. Holly Emmons gives tips on making them last in a free presentation.
  • Open House at Jefferson Historical Society’s Old Jefferson Town House, at 7 Gardiner Road, from 4 to 6:30 p.m. See three floors of antiques, photos, documents and other artifacts of Jefferson history in the 150-year-old building.

TUESDAY, AUGUST 27:

  • Garden Tour at Merryspring Nature Center, Camden, noon. Gardener Denise DeSpirito leads the tour, and discusses how to harvest and use various plants. $5.
  • See Geese, Goats and Other Creatures at Hostile Valley Farm, in Liberty, at 6 p.m. Final stop in Maine Organic Farmers & Gardeners Association’s free Gather & Grow tour series.

COMING UP:

  • Workshop on Helping Monarchs, Saturday, August 31, at 10 a.m. at Merryspring Nature Center, Camden. Merryspring volunteers Eric Evans and Dottie Hokkanen describe the life cycle and long migration routes of Maine’s iconic orange-and-black butterflies – and list the threats they are facing as their populations decline. Learn how to raise caterpillars indoors and plant milkweed and other nectar flowwers and native food sources they need to survive. $5.