
Alisma
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on February 27, 2017
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.
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