Hardiness: 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) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
On Mar 25, 2007, Cretaceous from El Sobrante, CA (Zone 9b) wrote:
This fern is native to the USA (Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, South Carolina, Texas), Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Bermuda, the Cayman Islands, Cuba, Haiti, Jamaica, Puerto Rico, and Turks and Caicos.
We started with one little clump, dwarfed by the ivy that had overpowered an entire backwall of our house. The ivy went, the fern died in the fall. (Or so we thought). Next spring we redid the bed where it was and we found the fern roots. We had no hope but left them and covered them with a thin film of dirt. By the end of that fall the fern was more than 3 ft tall and had extended about 3 ft to each side. This year we hacked some root clumps out and spread them by one of the side fences. Hmmm talk about a nice cover for that cyclone fence!
Warning: the spores will spread all over the place and your fern will grown in every pot and every inch of dirt you have. Aggresive control is advised.