Starting plants indoors makes it easy to grow varieties that aren't normally hardy enough to last through a cold winter. That's especially exciting for northern gardeners wanting tropical fruits and early-flowering blooms. These dwarf varieties make the best indoor plants, as they don't take up too much room in the house and are easily transported outside when it gets warm. They're ornamental, keeping your home feeling bright and the air fresh through winter. And then, as it starts to warm up, you can start taking them outside during the day—they're lovely on a patio or deck. By spring, you've got healthy, growing potted plants, much closer to blooming and bearing fruit than the plants your neighbors are just starting to grow.