Buddleja plants: Get one or three buddleja 'Butterfly Towers' plants - 2019 entrant at the Chelsea Flower Show! Variety: A reliable and beautifully scented butterfly bush with a tall, columnar habit, for showstopping displays. Great for bees: With nectar rich blooms that are loved and adored by the butterflies and bees! Flower: Produces a majestic tower of mauve-purple flowers throughout the summer. Season: Delicate violet-purple blooms gather in a perfect cone shape from June to September. Peak : Peak height; 2m, peak spread: 1m. | Buddleja 'Butterfly Towers' | Wowcher