Enormous show45stopping conical blooms smother this vigorous deciduous shrub from midsummer through to autumn the flowers emerge white before taking on shades of light pink and finally become vibrant red45pink by autumn for a long period of interest hydrangea paniculata 39mega mindy39 makes a fantastic specimen shrub in borders woodland gardens and cottage gardens where the dark red upright stems and amazing flowers provide structure and architectural interest height 2m 40