Sea Holly 'Big Blue' is extraordinarily eye-catching with its multitude of intense, iridescent steel-blue flowers, 4 in. wide (10 cm), tightly packed into egg-shaped heads, that light up the garden throughout summer. Its beautiful texture and unique color that extends onto the stems and leaves, coupled with its long-lasting flowering, easy care and remarkable qualities as cut flowers make it a favorite of gardeners. A favorite of bees and butterflies too!

A stunning plant for year-round interest, Euphorbia characias subsp. wulfenii is a statuesque evergreen shrub that enjoys months of chartreuse flowers. Upright, it features erect stems with spirally arranged narrow blue-green leaves. They are decoratively topped with thick bottlebrush-like greenish-yellow flowers in spring, which consist primarily of glowing lime-yellow bracts with purple nectar glands. Remaining attractive during all its growing season, this remarkable plant is resilient to most pests and diseases and is deer and rabbit-resistant.

Allium sphaerocephalon or 'Drumstick Allium' is a lovely addition to the border where it adds interest and movement with its dense egg-shaped flower heads atop straight and slender stems, delicately turning from green to purple as they mature. Blooming in late spring to early summer, this spectacular bulbous perennial adds some dramatic color to the garden. Naturalizes easily and will come back year after year

If you are looking for abundant blooms in shades of magenta for weeks of summer color, Achillea millefolium 'Cerise Queen' is what you need. This eye-catching Yarrow features masses of long-lasting clusters of bright cherry-pink flowers with white centers. They rise elegantly atop a pleasantly aromatic, semi-evergreen, mid-green fern-like foliage that nicely compliments the cheerful flat umbel flowers.