Designing a Four-Season Perennial Garden in Zone 6

Creating year-round color in Zone 6 requires a succession of bloom times, foliage interest, and structural plants. Instead of a fixed list, use the Bluestone Perennials Custom Search (bluestoneperennials.com) to filter by your zone, sun exposure, soil, color preferences, and bloom season. It's the most efficient way to build a tailored plant palette.

Design Principles for Continuous Color

• Spring (April–May): Bulbs (tulips, daffodils), bleeding heart, columbine, creeping phlox, hellebores.
• Early Summer (June): Peonies, iris, salvia, catmint, coreopsis, daylilies.
• Mid-Late Summer (July–August): Coneflowers, black-eyed Susans, bee balm, phlox, Russian sage, ornamental grasses.
• Fall (September–October): Sedum 'Autumn Joy', asters, Japanese anemone, goldenrod, mums.
• Winter (November–March): Evergreen structure (boxwood, holly), ornamental grasses, seed heads (coneflower, sedum), berries (winterberry, viburnum), hellebores (late winter bloom).

Pro Tips

• Plant in drifts of 3–5 for impact.
• Include foliage stars: heuchera, hosta, ferns, brunnera for shade; sedum, yucca, artemisia for sun.
• Stagger heights: tall back, medium middle, short front.
• Leave seed heads standing for winter interest and bird food.

Reliable Sources

Bluestone Perennials offers a plant guarantee and excellent service. Other reputable mail-order nurseries: White Flower Farm, Prairie Nursery, High Country Gardens, Plant Delights.

Start with a rough sketch on graph paper, plug your conditions into Bluestone's search, and build your list. The garden will evolve—enjoy the process.