Hardired Nectarine TreeHardired Nectarine Tree Cold Hardy, Self Fertile & Incredibly Sweet If you live in a cold climate and thought nectarines were out of reach, the Hardired Nectarine Tree changes everything. One of the most cold hardy nectarine varieties available, Hardired tolerates temperatures down to 20F making it a reliable, productive choice for northern gardens where most nectarines simply wont survive. Add in its self fertile nature, manageable size, and rich,