We offer a variety of workshops throughout the year, both in person (now that COVID is receding), and online. Some are in-depth classes offered as paid programs, all with exceptional instructors. Details on all these programs follow.

  • Program locations vary as noted.
  • Pre-registration is required.
  • CEUs are indicated for each program if they are available.

This page lists our current offerings. Additional programs will be added periodically throughout the year.


Bark: A Field Guide to the Trees of the Northeast book cover

Bark: Get to Know Your Trees

Instructor: Michael Wojtech, Author of "Bark: A Field Guide to Trees of the Northeast"

  • October 5 | 3:30 - 6:30pm

Where: Waltham Field Station, 240 Beaver Street, Waltham, MA

CEUs: APLD; NOFA-AOLCP (pending)

Fee: Member $52/ Non-member $62/ Workshop Sponsor $120


The traits typically used to describe trees—leaves, twigs, and buds—are often hard to see or seasonally absent. Join us for an exploration of bark, which is always visible, in any season. As you hone your perceptive abilities, you will learn about a system for identifying tree species by their bark, and discover why such a variety of bark characteristics exist. Why do some species have smooth bark, while on others it is thick and broken? Why does bark peel? We will begin with an indoor presentation, and then head outdoors to continue our discoveries of trees.

Michael Wojtech is a naturalist and educator with a passion for studying the structure, growth processes and ecology of trees. He is well-known as the author of Bark: A Field Guide to Trees of the Northeast and he co-authored Drawing Leaves and Trees: Observing and Sketching the Natural World. He earned his masters degree in Conservation Biology from Antioch University New England.

Bumble bee foraging on a New England Aster.

Diversity is Resilience: Designing Landscapes and Corridors to Support Wild Pollinators

Instructor: Evan Abramson, Principal, Landscape Interactions

  • October 20 | 7:00 - 8:30pm

Where: Online (By Zoom Meeting)

CEUs: APLD; NOFA-AOLCP (pending)

Fee: Member $32/ Non-member $42/ Workshop Sponsor $100


Gardeners, landowners and landscape designers have a vital role to play in strengthening, expanding and enhancing regional biodiversity, ecological health and climate resilience. In public parks, conservation properties, farms, front lawns and backyard gardens, functionally diverse native pollinator habitat can serve as a building block for linking intact natural areas across a fragmented landscape. But what to plant, where to focus on first, when to seed or mow and how to measure the results? Evan Abramson will present a series of case studies from project sites across the region, all created specifically to support at-risk species. An interactive Q&A with audience members will follow.

Evan Abramson, M.Sc., works closely with project partners from non-profit, private and public sectors, on efforts ranging from regional corridors to site-specific designs. In 2020, Landscape Interactions was responsible for designing over 100 acres of habitat installed in the northeast, specifically targeting at-risk bee and butterfly species for each project location. He also authored the Lincoln and Great Barrington Pollinator Action Plans.