The Irrigation-Free Landscape is almost ready for its winter slumber. Just before it goes to sleep, we wanted to plant some bulbs to ensure good late-spring color. The perfect bulb for a cold-climate but drought-prone garden is Allium. It will appreciate the drier conditions in the garden and reward you with electric-purple globes of color come late spring. Leave the spent seedheads on through summer to add additional form, texture, and color to the landscape. Loveliness.