Aster laevis 'Calliope'
9 cm sized pot. Aster laevis 'Calliope' is a hardy perennial that gives wonderful autumn colour. It has clumping dark green foliage and single lilac-blue blossoms in autumn. It can reach 1.5m+ but giving it a trim back in summer can reduce the height if need be. It likes a sunny, well-drained position and looks wonderful combined with rudbeckia, heleniums, helianthus or salvias for a lovely autumn display.