A plant classified as an perennial

Question

Completes its life cycle in one year or less?

Takes many years to complete its life cycle?

Usually dies of disease or trauma rather than old age?

Completes its life cycle in two growing seasons?

Answer 1

Per-ennial means through years. While the plant may appear to die back at the end of a growing season, it will come back (unless diseased or aged) the next season from the same root or bulb. It may also sow seeds that will germinate next season, but these will be new plants, starting their own life cycles.