19 Favorite Bulb Flowers for Year-Round Color

It's easy to grow flowers with bulbs. Year-round color explodes from easy-to-grow bulbs like tulips, calla lilies, Siberian iris and other annual or perennial bulbs. For best results, choose bulbs recommended for your hardiness zone and stagger their planting times so you have a continuous flower show.

These fragrant hyacinths, hardy in Zones 4 to 8, are great partners for spring daffodils, needing little more than full sun and well-drained soil mixed with plenty of organic matter. You can even grow some spring bulbs indoors.

Easy to overlook, these miniature iris appear in early spring, often when crocus are in flower. The plants are small (6 inches tall at most) but boast big color. Landscape use: Tuck along the edge of planting beds or paths. Plant in groups to help increase visibility. Hardy in Zones 5 to 7.

This spring favorite opens its cheery blooms as early as February in Zone 7. Look for flowers from March to mid-spring as you head north. Landscape use: Plant in clumps of six for impact. Use in woodland areas, along border edges or in front of evergreen shrubs. Hardy in Zones 4 to 8.

Bright blue blossoms dangle atop 3- to 6-inch stems. Flowers appear in late February (in warmest zones) to March and provide an early food source for bees. These bulbs naturalize easily to form a blanket of color. Landscape use: Create a living carpet in small lawn areas, beneath trees or in planting beds. Hardy in Zones 2 to 8.