You can count on Phlox paniculata 'Blue Paradise' to add rich, changeable color and perfume to your summer garden. This selection of garden phlox (Garden Phlox 'Blue Paradise') produces large flower clusters that read lavender-blue to blue-purple, often deepest in cooler light. A sweet fragrance makes it a standout near patios and paths, and the blooms are a magnet for butterflies and hummingbirds.
Plan for a mature size around 24-36 inches tall, with a spread about 12-24 inches. It fits easily into perennial borders and cottage-style plantings, and it pairs well with other mid- to late-season perennials for a long-running display.
Give your phlox full sun for the most flowers, or choose part shade in hot climates to help the color hold longer through the day. Plant in moist, fertile, well-drained soil, and water during dry spells to keep the plant vigorous and blooming freely.
Good air circulation is key for best performance, so avoid crowding and thin stems if needed. Remove spent flower clusters to encourage additional bloom, and cut stems back after frost to tidy the bed. In USDA zones 4-8, it returns reliably each year with stronger clumps over time.