Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F)
Sun Exposure: Light Shade Partial to Full Shade Full Shade
On May 9, 2013, bonsaiguydw from Mendenhall, PA wrote:
I grew this for several years in a part shade stone wall in which I had deeply inserted a little limestone/marble. It grew and "walked" quite well. Really fun to grow and watch it root! I did paper clip the tips of the leaves to its neighboring dirt slot to assist its rooting. Love this plant. Hope to find it again.
On Mar 28, 2005, nick89 from Tallahassee, FL (Zone 8b) wrote:
A very strange and unusual fern. I was at first puzzled by it when I found a wild clump near a limestone spring.
It propagates itself by plantlets at the tips of the fronds. These eventually come in contact with the soil and root, so in a way they "walk" (if you can call it that).
On Oct 3, 2004, Toxicodendron from Piedmont, MO (Zone 6a) wrote:
This fern grows in low mats on limestone ledges and boulders, often over a layer of moss. It requires constant humidity and therefore it only survives in natural settings that are in close proximity to rivers and streams or other water sources that constantly humidify the air. Sadly, it has been overcollected in many instances by ignorant persons who think they can grow it at home. It will survive in a terrarium, with extremely careful watering. It spreads by new baby plantlets that arise at the leaf tips, rooting where they touch down. It is always a delight to see large boulders completely covered with this fern, but one needs to appreciate it in it's own specialized habitat.
This plant has been said to grow in the following regions:
New Market, Alabama Marshall, Arkansas Bartow, Florida St Paul, Minnesota Cape Girardeau, Missouri Piedmont, Missouri Kennett Square, Pennsylvania Mendenhall, Pennsylvania Conway, South Carolina Viola, Tennessee