Dianthus 'Tropical Butterfly' Carnation Hardy Perennial Customer favourite Delight your senses with this scintillating dianthus. Its breathtaking beauty is matched only by the power of its fragrance. Exotic, bicolour blooms carried above mounds of silver-green foliage lend a tropical feel to perennial borders and containers, producing an abundance of perfumed dianthus flowers for cutting. Height: 40cm (16”). Spread: 30cm (12”).