To Rebuild NYC’s Beaches, A Native Plant Savings And Loan

Heather Liljengren, a field taxonomist with the New York City Department of Parks and Recreation, examines the seed pods of the Virginia spiderwort at Oakwood Beach, Staten Island. Liljengren collects seeds from across the region for a seed bank of native plants.

Heather Liljengren, a field taxonomist with the New York City Department of Parks and Recreation, examines the seed pods of the Virginia spiderwort at Oakwood Beach, Staten Island. Liljengren collects seeds from across the region for a seed bank of native plants.

Across the New York region, people are still working to rebuild homes and businesses after the havoc wrought by Hurricane Sandy. But the storm also devastated the dunes and native flora of New York's beaches.

When the city replants grasses on those dunes, it will be able to draw on seeds from precisely the grasses that used to thrive there. That's because of a very special kind of bank: a seed bank run by the Greenbelt Native Plant Center on Staten Island.

Heather Lea Liljengren has been a seed collector and field taxonomist for the New York City Parks Department, which runs the Native Plant Center, for more than five years. She's been on the hunt for new deposits: plant seeds that might ensure the survival of the city's flora.

Traipsing through the swampy wetlands of Staten Island's Oakland Beach, Liljengren crashes through towering phragmites, the common reeds that have invaded the world's wetlands and compete with local grasses. When the grasses get this tall taller than an adult human "It's hard to remember where the trail used to be," Liljengren says.

She says she loves being in a swamp and is thrilled to be out in the wilds of New York City, hunting for seeds that are ripe for collecting. "When people walk around, they maybe just see green. But when I walk around I am drawn to every small flowering thing, from the ground all the way up into the trees."

"Well, what a treat," she says, peering at the blooms of the thin-leafed iris, iris prismatica. "[This is] one of the only spots, I believe, in the five boroughs where this species naturally still exists. ... The insects that will come and pollinate these irises love them."

That's why native flora is so important, Liljengren says: If these plants disappear, then so will the insects. In time, the loss of species will snowball.

Seeds are coaxed out of dormancy in the nursery at the Greenbelt Native Plant Center on Staten Island. The center considers its seed bank the "Library of Congress" for the region's native plants.

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To Rebuild NYC's Beaches, A Native Plant Savings And Loan

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