IHM EarthCare Update

We know, of course, that our IHM Center is located in Pennsylvania, which is known as the Keystone State. “Keystone” is an architectural term that refers to the central, wedge-shaped stone in an arch. This stone holds all other stones in the arch in place and is generally considered the most crucial part of an arch. Because of Pennsylvania’s geographic, economic, and political position during the early days of the nation,
Pennsylvania is nicknamed the Keystone State.

Similarly, native plants are considered keystones. Our friend, entomologist, ecologist, and conservationist Dr. Doug Tallamy coined the term “keystone” for native plants because, just as the keystone holds up an arch, keystone native plants hold up the web of life. These plants exert a disproportionately large influence on the health and stability of an ecosystem, acting as linchpins that support a wide variety of other organisms.

According to Dr. Tallamy, “We have this misconception that all plants are created equal. But the reality is that some plants are much more ecologically valuable than others.”
According to his research, a mere 14% of native plants support a whopping 90% of our caterpillar species, which in turn are the lifeblood of countless birds. Keystone native plants provide essential food and shelter for a diverse range of creatures,
ranging from the tiniest insects to the largest birds of prey.

Keystone species include oaks, willows, birch, cherry, asters, goldenrods, perennial sunflowers, black-eyed Susans, and more.

Our EarthCARE committee is committed to protecting the keystone species that we have already planted as part of the restoration project as well as to adding more. When we incorporate these native plants into our landscape, we not only add beauty; we also actively contribute to a thriving ecosystem in our own backyards.