So, we dug up the area to find the bulbs and nothing was there. We are at a loss to know what happened to them. We also have planted five iris bulbs and they all came up and started blooming. The next day the blossoms were completely gone and so were the blossoms to be. A. Spring flowering bulbs require good soil drainage.
Tulips are the most senstive to poor drainage.
Typically tulips flower for two years and are gone. Unfortunately heavy clay soil does not drain well and as a result, the spring flowering bulbs often live for only a few years. One way to improve the problem is to plant bulbs in raised beds. Squirrels probably enjoyed the flowers of the iris. They are tender and succulent.