Adiantum x mairisii
Mairis's Hardy Maidenhair Fern
Item #: 4799
Zones: 6a to 9b
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L) ?
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My first experience with the sterile Adiantum x mairisii was in 1993, thanks to a gift from the late fern collector Nancy Swell of Virginia. Not to be confused with the Chinese Adiantum mariesii, this reported hybrid of Adiantum capillus-veneris and an unknown baby daddy was discovered around 1885 at the UK's Mairis & Co. Nursery and subsequently named by Chelsea Physic Garden Curator and fern collector Thomas Moore. Adiantum x mairisii performs like a vigorous clone of southern maidenhair fern but with very good winter hardiness. Expect a 3' wide deer-resistant patch of 1' tall, lacy maidenhair foliage in 5 years (NC).