Annual flowers (annuals) grow once for the season and die. Do you mean you want flowers to come up annually? Meaning every year at the same time? Those are perennials, they come up year after year in the same spot at the same time.
Bulbs come in two types, spring planting like Dahlia's and Lillies and fall planting like Tulips and Daffodils. Just go to your Lowes or local garden center, they should be in supply now and can be planted now for spring flowers. You might want to pick up a bulb planter, a small hand held tool that plugs a spot of dirt just big enough to put the bulb in the ground and recover.
If I could offer one bit of advice though, plant your bulbs in groups or clusters, and not straight lines. They look prettier and much more natural in a clump rather than a militant row of blooms.
at 7:53 AM on Sep. 17, 2009