Achillea × 'Firefly Peach Sky' is a tall, upright yarrow grown for its soft peachy-orange flower clusters that gradually mellow to warm yellow as they age. You will also love the aromatic, fern-like foliage that forms a dense, mounded base and supports sturdy stems for cutting and drying.
Give it full sun for the best flowering and a strong, compact habit. Plant in well-drained soil and avoid overly rich, consistently wet sites, which can encourage floppy growth. Once established, it handles heat and dry conditions well, making it a dependable choice for sunny beds and low-water borders.
At maturity, expect flowering stems around 32-36 inches tall, with a billowy clump that pairs well with ornamental grasses and other sun-loving perennials. Deadhead spent blooms to keep the display looking fresh, or leave some flowers to dry on the plant for late-season texture. Cut back old stems in late fall or early spring, and divide the clump if it becomes crowded or the center thins.
Use this cultivar to add warm, shifting color to borders, cottage-style plantings, and pollinator-focused gardens, or plant several for a dramatic mid-border drift.