Zwanenburg Blue Spiderwort Sansevieria Horsford Eastern White Pine is

Horsford Eastern White Pine is an excellent choice

Cotton Tail Thrift (Armeria maritima 'Cotton Tail')

Summer Carnival Hibiscus (Hibiscus 'Summer Carnival') is an excellent choice for sunny borders

adding structure without heaviness

Zwanenburg Blue Spiderwort Sansevieria Horsford Eastern White Pine isZwanenburg Blue Spiderwort (Tradescantia x andersoniana 'Zwanenburg Blue') Zwanenburg Blue Spiderwort is a hardworking perennial that brings rich blue color and quick fill to sunny and lightly shaded borders. It forms a sturdy clump of arching, grass like foliage that helps beds look planted and complete early in the season. The three petaled blooms open in succession, so you get weeks of fresh color instead of a short peak. It is especially useful