Add dramatic spring color to borders with Lupinus polyphyllus Westcountry (TM) Manhattan Lights, a showy lupine known for upright flower spikes packed with purple and yellow bicolor blooms. You will get strong vertical accents that look especially striking in groups, with fresh green, palmate foliage forming a handsome base.
Plant in full sun for the most flowers, and give it light afternoon shade where summers run hot. Provide organically rich, moderately fertile, slightly acidic soil that drains well, and keep moisture even during establishment and bloom. Good air circulation helps reduce powdery mildew in humid conditions.
As the spike finishes, deadhead spent flowers to encourage additional bloom and keep the planting tidy. Mulch around the crown to keep root zones cool. If taller stems need support in windy areas, stake early. In the best climates, lupines can be short-lived perennials, so consider adding a few plants every couple of years for consistent display.
These fragrant blooms draw pollinators, including butterflies and hummingbirds, while deer and rabbits tend to avoid browsing. Place plants where you can enjoy the color up close, and keep in mind that seeds and other parts should not be eaten.