Spring-Blooming Bulbs for Challenging Soils and Dry Climates

I’m always looking to get the biggest reward from the time and energy I put into the garden. I love annuals that reseed themselves in my butterfly garden and perennial plants that can be increased through division. I lean toward ground covers that creep across the garden floor. When it comes to spring-flowering bulbs, I focus on species that naturalize in the garden. That rules out fussy hybrid tulips—but not all tulips.

For a plant to naturalize in the landscape, it must be able to spread and reproduce on its own. Bulbs are ideal for this, as they naturally multiply via bulb offsets and reseeding. Over time, clumps of naturalized bulbs grow and spread beyond their original planting location. To give bulbs a natural appearance in the garden, plant in irregular clumps rather than orderly rows. Repeat clumps in a random pattern along the length of the planting bed.

Ideal locations for naturalizing flowering bulbs include rock gardens and perennial borders. Plant clusters along woodland paths and beneath deciduous trees and shrubs. Though many are labeled for “full sun,” bulbs often come from cooler climates and benefit from a bit of shade from our hot summer sun. Mulching bulbs with composted bark or other organic material can also help keep soils cooler in the summer.

When selecting bulbs to naturalize, focus on those native to drier climates. Consider soil type and annual rainfall, particularly spring precipitation. Some species thrive without supplemental irrigation, while others require a good drink in spring. There are even flower bulbs that tolerate clay soil. Here are some of the best selections for our region.

Many flowering bulbs, including species or botanical tulips, readily naturalize even in hot, arid gardens,