Bring long-lasting, bright yellow color to sunny beds with Achillea × 'Firefly Sunshine'. This upright yarrow pairs vivid summer flower clusters with dark gray-green foliage for a clean, modern look.
Expect mature size around 28-30 inches tall with a spread of about 24-28 inches. Strong stems help the blooms stand up well, and the flowers keep their color through much of the season, making this a reliable choice when you want consistent summer impact.
Give it full sun for best flowering and the most compact habit. Plant in well-drained soil; once established, it is happiest where the soil does not stay soggy. Space plants to allow good air flow and keep the clumps looking neat.
In the garden, use it to brighten borders, mixed perennial beds, and mass plantings. The yellow blooms are also attractive to butterflies, adding extra life to your summer display.
For ongoing performance, remove spent flower heads to encourage a tidy look and more blooms, and cut back after flowering to refresh the foliage. Divide clumps as needed to maintain vigor and keep the planting full.