Fall is a great time to start a new garden area for spring - without having to dig up the grassAll you need are a few basic items, most of which you may be able to gather for free, like some discarded cardboard boxes, some mulch and/or other organic matter, and an hour or two of your time. Adding the border of your choice is optional.
Some annuals are great houseplants, some can be saved over winterA lot of plants sold in the "annuals" section at stores are perennials that can't survive year-round outside where they are sold, so they are referred to as annuals to avoid any unrealistic expectations. Perennial plants have a range of hardiness zones, which can be easily checked if you're curious about a particular plant.