The calliandra was full and green fully covering the block fence. about 5 years ago we had a 3 day below freezing winter and the calliandra was freeze damaged. It never has come back to it's former fullness.
My landscape maintenance person has recommended removing all the calliandra and planting new plants (calliandra). Do you recommend doing this, or should the dead woody part be trimmed away and the plants fed and encouraged to regrow?