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Phlox paniculata Classic Cassis is a striking perennial admired for its upright clusters of deep pink to magenta flowers that bloom from midsummer into early autumn. The tall flower spikes rise above lush green foliage, adding height, structure, and long-lasting colour to borders, cottage gardens, or mixed planting schemes. Its nectar-rich blooms attract bees, butterflies, and other pollinators, providing both ornamental and ecological value.

Thriving in fertile, well-drained soil, this hardy perennial prefers full sun to partial shade and forms dense, low-maintenance clumps that return reliably each year. Deadheading spent flowers encourages further blooms and helps maintain a tidy habit. Phlox paniculata Classic Cassis combines long-lasting floral display, wildlife support, and resilience, making it a versatile and rewarding choice for UK gardens seeking summer and early autumn interest.