While landscapers treat many bulbs, particularly certain tulips, as annuals to be re-planted each fall, other bulbs naturalize readily and can be incorporated into a landscape plan as you would any other perennial. In fact, botanically speaking, all bulbs are perennials. It's just that some don't act like it. The effects of hybridizing has limited the ability of some to multiply in the landscape. Others don't thrive more than one season when planted in habitats far different from those to which they are native.
Flower bulbs are attention getters, easily anchoring large-scale green areas.
In spring, when deciduous trees are leafless, they give color to the bare ground in forest gardens, grass-covered roadsides, and public parks. Such plantings are not costly and, depending on the circumstances, certain operations can be executed mechanically.