Callistemon sieberi

Yet another very hardy bottlebrush, this from southeastern Australia, found growing along creek beds and tolerant of both wet and dry conditions. This fountain-like shrub with fine-textured, narrow leaves can be pruned to maintain a dense structure or allowed to grow to its expected height of 6 ft or so. This form has tight chartreuse, 'bottlebrush" flowers in spring, often repeated in summer. Best in sun to dappled shade. Frost hardy to upper USDA zone 7.