The old gardening rulebook says outdoor plants belong outside and houseplants belong inside, but plenty of gardeners now enjoy bending that rule. An “in-and-out plant” can spend part of the year outdoors soaking up natural light and fresh air, then move indoors when temperatures, frost, or harsh weather create trouble.
This approach gives gardeners another way to squeeze more use from favorite plants, especially tender perennials, tropical plants, herbs, and container specimens. It also creates a small seasonal ritual: the patio gets its summer cast of characters, then the best performers receive a ticket back indoors before the weather turns nasty.
