Flower bulbs make it easy to keep your garden colorful from early spring through fall. You can get a jump on spring by planting early-bloomers such as crocus and daffodils. Follow that with tulips, alliums and iris. For summer through fall there are lilies, dahlias, cannas, caladiums and so many more.
With this chart you can see the whole growing season at a glance. Choosing bulbs that blossom during different times of the year will ensure you always have a wave of new flowers coming into bloom.
If you are wondering when to purchase and plant these bulbs, here's the general rule. Bulbs that bloom in spring are available in the fall, for planting between September and November. Bulbs that bloom early through late summer are available for planting in spring and will bloom a few months later.