The Delaware Department of Natural Resources and Environmental Control’s Division of Watershed Stewardship and the Reclaim Our River Program, in partnership with the Delaware Nature Society and the Nanticoke Watershed Alliance, will host a free presentation on “Gardening for Clean Water and Butterflies” at 6 p.m. March 26 at the Seaford Library, 600 N. Market St. Extended.

Over the past 20 years, the monarch butterfly population has declined by 90 percent worldwide. Plants depend on pollinators like the monarch butterfly for reproducing and natural abundance. Flowering plants in turn help purify water and help prevent erosion through roots that hold soil in place and foliage that buffers the impact of rain as it falls to the earth.

Presenter Alice Mohrman, from the Delaware Nature Society’s Abbotts Mill Nature Center, will introduce participants to the life history of various native butterflies and pollinators and focus on how to invite pollinators, birds and butterflies to one’s yard, deck, patio or balcony. Mohrman will offer tips on landscaping yards large and small with attractive native plants to support wildlife habitat while also helping to reduce pollution in waterways. She also will demonstrate a few steps toward creating a Certified Wildlife Habitat.

A limited amount of free milkweed seeds — which can be grown into attractive monarch habitat — will be available to those attending the presentation. Participants also will receive information on activities that support clean water and learn about this year’s 2018 ROR-Nanticoke Series, which offers opportunities to have fun around water and learn techniques for keeping waterways clean.

For more on the presentation, call 422-0847 or email alice@delawarenaturesociety.org.

For more on the Reclaim Our River Program, call 739-9939 or email philip.miller@state.de.us.