Big retailers like Amazon, Walmart, and Etsy are filling their inventories with more affordable indoor houseplants, and it’s never been easier to get a plant safely delivered right to your door. Along with these large stores, you can also check out direct-to-consumer plant shops like The Sill and Bloomscape.

Flea markets and other community home and garden sales also can be a good place to find inexpensive plants that are already adapted to the local climate. If there's a public garden in your community, see whether it gives tours.