Perennials are the backbone of any garden! While annuals provide quick color for the whole season, they live for only one year. Perennials come back for many years, so they're a great investment to get the most out of your garden budget. They also bloom for a shorter period of time early, mid-season or later in the season, with their flowering period lasting for a few weeks or so. They typically take a few years to get established, too, so don't fret if they seem lackluster the first year or two...