
MichiganDot
Answered on August 24, 2018
I think hay scented fern, oak fern and ostrich fern are spreading ferns, once they get established. You probably won't see much spread during the first year.
https://www.gardeningknowhow.com/ornamental/foliage/ostrich-fern/growing-ostrich-ferns.htm
https://www.gardeningknowhow.com/...fern/growing-hay-scented-ferns.htm
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