Don't underestimate the power of that succulent in your living room. "We believe part of the satisfaction of living with indoor plants is in their modest requirements, and just as much pleasure can be found in a humble potted cactus as in a conservatory full of demanding tropical plants," write London garden designers Caro Langton and Rose Ray in their new book, House of Plants: Living with Succulents, Air Plants, and Cacti (Frances Lincoln, $30). Ultimately, theirs is a guide for those who've never even considered developing a green thumb until this very moment. "It’s likely your indoor greenery will find you when you are least prepared: given as gifts, or perhaps stealing your attention while strolling through a local market," they write. Whether you’ve been gifted a jade plant or you picked up a echeveria at the store, it’s important to learn how to care for succulents. Read on to find out how to keep your plants healthy and happy.