Pomegranate buds keep freezing
I put in a pomegranate tree three years ago (understanding that the tree is frost hardy to 20 degrees). Each year the freezes we get (well above 20) are enough to kill the buds that have begun sprouting. Then I wait for the tree to make new buds, trimming off the thin branches that have also been killed. Am I wasting my time? Should I pull the darn thing out of the ground and plant a hardier tree, or does the tree get tougher with a little age?