If you care about your chickadees, what do these numbers mean: 350 to 570? My environmental and social justice pal Ellen Schoenfeld-Beeks let us know at her “Garden Revolution” talk at the Unitarian Church of Sharon, MA earlier this month. The answer is, 350 to 570 is the number of caterpillars a pair of chickadees needs every day to nuture their chicks from hatching to fledging. That’s just one pair of one kind of bird! Ellen inspired us to think and learn about every plant and practice in our gardens, and whether and how each helps or harms the natural systems that support all living things.
Ellen, who manages the church’s extensive gardens, showed examples of native plants at the church’s gardens and at her own home through the seasons, and how they support or harm our native pollinators, wildlife and local ecosystem at large. She even talked about plants she introduced to her gardens on purpose, only to find out years later that they were actually exotic invasive look-alikes of native plants. For example, she thought she was planting yellow marsh marigolds (Caltha palustris), but they turned out to be fig buttercups (Ranunculus ficaria, or, Ficaria verna), which are on the MA list of plants that are prohibited from sale.
After about three years they had spread like a spring carpet of yellow, in part because they aggressively reproduce by three different mechanisms. Once she realized her error, Ellen took responsibility and removed them by hand, an intensive but organic gardening practice. It took three seasons to bring their numbers to a manageable level.
Ellen also reminder us that one of the Unitarian Universalist Church’s guiding principles is respect for the interdependent web of all existence of which we are a part. She urged us to think carefully and learn about the impact of each of our plantings, as every plant in our landscapes matters, and your landscape supports, or doesn’t, those chickadees who need all those caterpillars every day to raise their young.