If tender perennials are not removed at the end of the warm season and a mild winter occurs, what may happen?

Tender perennials are plants that typically survive for more than one growing season, but they cannot withstand frost and are sensitive to cold weather. When tender perennials are not removed at the end of the warm season, and a mild winter occurs, these plants may remain unharmed if temperatures do not drop below their tolerance levels. As a result, they can survive through the winter months and resume growth, blooming again in the summer.

This ability to survive and bloom again is contingent upon the mild winter conditions, which prevent frost damage. In climates where these plants are grown, they can effectively thrive and contribute to the landscape in subsequent growing seasons if the environmental conditions allow.