Can I plant a mammoth fern outside? I live on Hilton Head, S.C.
Certified GKH Gardening Expert
It seems that the name "mammoth fern" can apply to different large fern species. If you can find the botanical name of the plant you want, look up its USDA gardening zone to see if it is a match for your climate. Hilton Head is in gardening zone 8b.