Retired professor of math and computer science having taught for 36 years at a state supported university in Virginia. United States Senators serve a term of six years in office. There is no limit on how many terms a Senator can be elected to serve.
Herbaceous perennials are garden plants that die back to the soil line when winter temperatures arrive. The plants enter a dormant period and strengthen the root system while waiting for the coming of spring.
Perennials are classified in various ways: 1  Herbaceous. Plants that die back to the ground each winter and have new stems that grow from the roots each spring. 2  Woody. Plants where the top persists, such as shrubs or trees. 3  Deciduous. Plants that shed their leaves and are leafless during a portion of the year.  Evergreen.