Gymnocarpium dryopteris 'Plumosum', Plumose Oak Fern

A well-behaved deciduous ground cover fern with feathery (plumose) fronds, at first light green, then bluish-green. Given freedom, it will create a delicate carpet in a woodsy area or can be happy tucked among the rockery with a bit of shade. Spreading but not invasive; easily curtailed.  Naturally grows on shale talus slopes as a forest understory plant.  Appreciates moist organic rich soil.   Mature size: 8 – 16 inches tall and spreading Minimum temperature: -40° F