• Flower Bulb Sale at Merryspring Nature Center, runs now through October 9. Visit merryspring.org for details or to place an order that you can pick up at Merryspring, 30 Conway Road in Camden. All proceeds benefit the nonprofit nature center.


  • Free Invasive Forest Pest Webinars, to highlight how you can help protect Maine forests from invasive pests that are here already or threaten to arrive, presented by local Soil & Water Conservation District staff. Presentations are scheduled for Wednesday, September 23, from 3 to 4 p.m. (Knox-Lincoln SWCD); Thursday, October 1, from 4 to 5 (Cumberland SWCD); Wednesday, October 7, from 3 to 4 p.m. (Penobscot SWCD); and Tuesday, October 13, from 9 to 10 a.m. (Central Aroostook SWCD). Webinars are free. Register for any presentation at cumberlandswcd.org/conservation-shop/have-you-seen-me-invasive-forest-pest-webinar.


  • Free Worm Bin Harvesting Workshop at Merryspring Nature Center, Camden, 6 p.m. Jock Robie leads the outdoor workshop for beginners to learn about vermiculture – using earthworms to odorlessly and naturally digest kitchen waste into useful soil amendments for gardens. And he invites old hands to hang out and harvest the season’s castings. Registration required; those who wish to obtain a worm bin must do so by Wednesday, September 23: call 236-2239 or email info@merryspring.org.


  • Common Ground Country Fair, Maine Organic Farmers and Gardeners Association’s annual fair in Unity, goes virtual this year and offers iconic and educational online content over three days, Friday to Sunday. The full schedule is at fair.mofga.org. An online marketplace runs September 25 to January 8 and lets shoppers support businesses that would typically be at the fair in Unity, like farmers, crafters, and nonprofit educational groups.
  • “Identifying New England’s Edible and Medicinal Mushrooms,” a two-part course with a webinar this Friday from 6:30 to 8:30 p.m. and a Saturday foraging hike at Midcoast Conservancy’s Hidden Valley Nature Center, in Jefferson, from 1 to 4 p.m. The class will look at edible as well as common poisonous mushrooms. Focus will be on learning of a few common edible and medicinal mushrooms and building skills for ongoing identification. The cost is $60 ($50 for Midcoast Conservancy members). To register, go to midcoastconservancy.org.


  • UMaine Extension Offers Webinar on Root Cellaring, from noon to 1 p.m. “Root Cellaring: A Cheap and Easy Method for Preserving Your Harvest,” led by UMaine Extension professional Jason Lilley, will cover the ideal storage conditions for most Maine crops and how to create various conditions throughout most households. While the talk will touch on specialized outbuilding structures for root cellaring, the focus will be on cheap and simple modifications to your garden or areas of your home to optimize produce storage length and quality. Registration required; $5 donation optional. Register at extension.umaine.edu/register/product/summer-gardening-series-root-cellaring to attend live or receive a link to the recording.


  • First of Solar Thursdays Offered by St. George Conservation Commission, on Zoom at 6:30 p.m., Thursday, October 1. The debut educational session in a series that will be offered periodically is called “New Options Are Here!” and will feature two presentations focusing mainly on residential use and a Q&A. Register to attend: stgeorgemaine.com.