Choose healthy bulbs to plant. Avoid bulbs that are dry and withered or spongy and moldy. The best bulbs are firm and plump. As a rule of thumb, larger bulbs tend to produce more flowers.
Before picking your bulbs, consider the color scheme you'd like to create. If you want a natural and varied look, choose bulbs that produce contrasting colors and a range of heights. For a more uniform garden, choose flower bulbs that will bloom in shades of the same color. Check the plant's height on the package and plant low-growing bulbs in front of taller ones.