Melampodium

As with anything, there are negatives. "Temporary" also means seasonal removal and replanting. This attribute makes an annual garden both more expensive in the long run and higher maintenance than its perennial counterpart. (Fortunately, annuals have very shallow root systems, so planting and removing is usually quite easy.) To keep your annuals blooming happily from spring to frost, you must remove the spent flowers and fertilize. In addition, a seasonal color bed full of annuals will generally require regular irrigation.