If you are searching for a hardy evergreen tree that requires only minimal pruning this balsam fir is the one for you the conifer grows a mere 25cm 4013441 a year making it an ideal specimen plant for low45maintenance rockeries and alpine gardens abies balsamea 39nana39 has a rounded habit and bears dense branches which produce faintly scented green needles and blue45purple cones height 1m 4033933441 spread 1m 4033933441