Bring long-season color and pollinator activity to your garden with Buddleia × 'Miss Ruby'. This compact butterfly bush produces abundant, showy flower spikes in rich pink to red-violet tones from summer into fall, with a sweet fragrance that draws butterflies and hummingbirds. Mature size is typically about 48-60 inches tall with a 36-48 inch spread, making it easy to tuck into mixed borders, foundation beds, and sunny cottage-style plantings.
Plant it where it will receive full sun for best flowering and a dense, rounded habit. Provide well-drained soil and water regularly during the first growing season to establish roots; once established, it handles occasional dry periods better. In colder parts of its range, top growth may die back in winter, but new shoots often regrow from the crown as temperatures warm.
For the strongest bloom, prune in late winter to early spring before new growth begins. Because it blooms on new wood, spring pruning helps keep plants compact and full of fresh flowering stems. Remove spent flower spikes during the season if you want a tidier look and to encourage more blooms. Pair it with other sun-loving perennials and shrubs for a vibrant, nectar-rich garden.