Annuals can be planted any time after the last frost in spring—even in the heat of summer to refresh garden beds or pots that have fizzled out. Perennials should be planted in spring or fall.

Annuals are great for adding instant color to your garden or containers and blooming all season long. You will have to replace annuals with new plants each year. Biennials run on a two-year cycle.

March 29, 2024 ... Most vegetables grown in home gardens are annuals. They wither and die at the end of the season and need to be replanted every year to reap more crops.