For more Oregon reading , check out: 1  These Are The 10 Best Places To Retire In Oregon. 2  These Are The 10 Most Miserable Cities In Oregon. 3  These Are The 10 Drunkest Cities In Oregon.
A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter-lived annuals and biennials.
Whether you're planting a windowbox, lining your sidewalk, or spicing up your perennial garden, here's how to make the most of what's available. Strictly speaking, an annual plant is one that completes its growing cycle (grows from seed, flowers and produces seed) in the course of a single growing season.