I gave away a fig infected with FMV. The lady I gave the plant to just left it in its pot outside. There that poor fig stood there in the changing weather with its roots alternately freezing and thawing. Okay, we DID have a mild winter here with the minimum around 14 or 15 degrees, but still, that fig is growing and setting brebas! This fig, Petite Negra, is, I believe, considered to be a bit tender. For many years I have been a firm believer that the right figs do just fine in New York City and other "warm" areas with NO wrapping at all! ( I lived for many years in a colder section of Staten Island before moving to southern New Jersey.) I NEVER felt figs should be allowed to experience temperatures below 20 degrees in a pot left out in the elements, however.