Mysterious sword fern die-off remains a growing concern

Paul Shannon
Healthy sword ferns in Seward Park, 2011.

The puzzling death of sword ferns in Seattle’s Seward Park is under ongoing investigation by Tim Billo, Paul Shannon and national fern experts the two are consulting with to address the problem.

King 5 News and KUOW spoke with Billo and Shannon and wrote about the concern recently as did Sierra Magazine, reporting yesterday that 11 acres of sword ferns have died in Seward Park so far, with no regrowth. If this pattern continues, the scientists on the project predict all ferns in the park could disappear for good in a decade.

For more on this ongoing research see:

Tim Billo speaks on King 5 News about fern die-off in Seward Park