Share this article Learn which plants thrive in your Hardiness Zone with our new interactive map! Visit Map → Home / Produce What Are Fern Allies? By: Garden Guides Team ● 21 September, 2017 Learn about close relatives of ferns called ""fern allies"" - free video. Your browser does not support the video tag. Related Articles How to Re-Pot a Fern→ What Are Bird's Nest Ferns?→ What Are Polypodium Ferns?→ How to Differentiate Ferns: Fern Morphology→ What Are Fiddleheads on Ferns?→ Cleaning Pergo Floors→ Plan Your Garden →