Minnesota s Chippewa National Forest is home to most of the world s population of goblin ferns. But time may be running out for the ancient ferns as surrounding forest floors are destroyed by a voracious invader: Earthworms.
Gardeners should do their homework to avoid bringing jumping worms home. They should check with gardening supply stores to find out where they source mulch. In addition to looking over mulch brought home from the store, gardeners should inspect plants over a week before putting them in the ground.