Ferns can be found all over in your interiors, from vintage framed prints (My fave!), to fabrics, or even using the fern leaf in a vase, on a table setting or using fern colored paints for your rooms!
Great fern fabric on these chairs VT Interiors
Fern wall corner from Country Home
CRLaine footstool in fern print
Simple and easy to do table setting using fern leaf tied to napkin with some grass
Fern Terrarium from Etsy, but can be a DIY.
Pretty Green Paints:
Green Fiddlehead MS267 from Martha Stewart paints
Pea Green 33 by Farrow & Ball