These long flowering perennials will bloom from early summer all the way through to autumn, and tend to prefer a moist, but well-drained soil in full sun. Where to buy: Also known as Mexican ...

4. Black-eyed Susan This is another one of the longest-flowering perennials that bloom all summer and require very little care. Deadheading will prompt frequent reblooming and prevent the plants ...

Perennial flowers and plants return for many years, giving you the most bang for your buck. See our favorite spring, summer, ...

If any of your perennials need to be divided, a general rule of thumb to remember is that spring and early summer blooming perennials are best divided in the fall, while mid to late-summer and ...