TWO TO TANGO
Plant two perennials together―either a single tall one surrounded by low growers or two tall ones. In the pot shown above left, red Geum 'Mrs. Bradshaw' and white Gaura lindheimeri mingle their delicate blooms.
Use three long-blooming perennials to form the backbone of the planting, then add smaller plants in complementary hues. The pot shown above right, designed by Tina Dixon of Plants à la Cart in Bothell, Washington, and Cheryl Wilson of Kirkland, Washington, features Rudbeckia 'Goldsturm', chocolate cosmos, and 'Pardon Me' daylily. Dark-leafed 'Ace of Spades' sweet potato vine trails over the edge; its color echoes the dark eye of black-eyed Susan vine. The container also holds purple fountain grass, bronze fennel, Sanvitalia procumbens 'Orange Sprite', Weigela 'Magic Carpet', Lysimachia nummularia 'Aurea', and Lonicera nitida 'Baggesen's Gold'.