United States

The Nature Conservancy in Delaware

Close up view of a large purple flower with thin curled petals arranged around a center that resembles an orchid. It has broad, flat green leaves.
Purple passion flower While it may look like a flower from a tropical rainforest, purple passionflower is native to portions of Delaware. It is a larval host to many types of butterflies. © Natasha Whetzel/TNC
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Make a Difference in Delaware

We're working with government agencies, private corporations, conservation organizations and our members to conserve the places on which people and wildlife depend. This has resulted in the conservation of more than 30,000 acres across Delaware since 1990.

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Latest News

Watercolor illustration showing a backyard garden of native plants. A brown butterfly sits on a yellow flower in the left foreground. A ruby-throated hummingbird hovers next to a flower on the right.

Blog

Putting Down Roots with Native Plants

Our garden guide will help you choose plants native to the mid-Atlantic region, supporting pollinators and biodiversity.

By Ellen Gorman | Apr 22, 2021

Six horseshoe crabs sit on top of a pile of green seaweed that has washed up onto a sandy Delaware Bay beach.

Content

Delaware Horseshoe Crab Count

The annual spawning of horseshoe crabs is an ancient spectacle—and an opportunity to understand and protect the population.

Last updated Apr 26, 2021

A black insect with transparent wings and large red eyes sits on a green leaf.

Feature

What You Need to Know about Brood X Cicadas in 2021

What to know about this noisy, natural wonder.

By Deborah Landau | Mar 23, 2021

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Sunrise over the Susquehanna River. The sun is reflected in the still water to the right of a tall, forested mountain ridge. Rocky outcroppings run along the river's shore in the foreground.

Conservation Update

2020 Impact Report

Despite a year that was anything but normal, we have many accomplishments in Delaware and Pennsylvania to celebrate and share.

Watch Video Explore 2020
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Aerial view of a public greenspace under construction.

Conservation Update

Highlights

Explore conservation highlights from Delaware and Pennsylvania as featured in the Spring 2021 Nature Conservancy magazine.

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A wetlands area of low grasses and thick tall trees. A fallen log creates a border between the open wetland area and scrub forest.

Video

Restoration and Partnership

A healthy Chesapeake Bay is in our grasp. Partnership and collaboration are critical to restoring wetlands and floodplains at a meaningful scale.

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A man wearing a blue mask stands in knee deep water at the edge of a forest trail. A woman wearing a mask stands on the slightly higher dry ground holding a clipboard.

Places We Protect

With your help, The Nature Conservancy has protected more than 30,000 acres in Delaware since 1990. We own more than 5,000 acres across six preserves.

Explore
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Six people pose together during a stream cleanup event. They are holding large black plastic trash bags and carrying long orange grabbers.

Opportunity

Volunteer In Delaware

Learn about opportunities to help conserve nature in Delaware.

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