How cold hardy are foxtail ferns?

Foxtail fern can tolerate temperatures as low as 20 degrees Fahrenheit. Where not hardy, foxtail fern may be grown as a houseplant in front of a bright, sunny windowsill with temperatures between 60 and 75 degrees F.Click to see full answer. Furthermore, will foxtail ferns survive a freeze?Foxtail ferns are evergreen perennials that grow in U.S. Department of Agriculture plant hardiness zones 9 through 11. Covering the plant will help prevent a freeze from killing it, but it will still likely suffer damage. Fortunately, the foxtail will recover by the summer as long as the roots did not freeze.One may also ask, can ferns survive cold weather? Ferns that do not withstand cold are usually the kinds found in pots indoors. Though it is a good idea to let indoor ferns spend some time outdoors on patios and balconies, they must be brought back inside when overnight temperatures dip below 50 degrees Fahrenheit. Thereof, do foxtail ferns come back every year? Uses for Foxtail Fern Plants Foxtail ferns have a moderate salt tolerance, so include them in your seaside plantings when a finely textured plant is desired in USDA Zones 9-11. In colder zones, grow the plant as an annual or in a container to bring inside for the winter.How fast do foxtail ferns grow? 10 Reasons to Love the Foxtail Fern A mature plant will grow to 6 to 8 feet across, but new plants will stay about 3 or 4 feet across for 12 years or more. For the 32 years I have had my plant (pictured), pests have not attacked or diminished its health.