Ruth standing next to plans

Ruth Kassinger is an author and speaker who writes about the intersection of gardening, history, and science.

In addition to authoring three critically acclaimed books for adults and eight award-winning books for children, Ruth has written for The Washington Post, the Chicago Tribune, Health, National Geographic Explorer, and other publications. She speaks regularly at conferences, bookstores, and with book groups.

Ruth grew up Baltimore, and received a B.A. degree from Yale University and a Master’s degree from Johns Hopkins University. She and her husband live in suburban Maryland.


Recent Books

Her latest book is “Slime: How Algae Created Us, Plague Us, and Just Might Save Us” (Houghton Mifflin Harcourt, June 2019). Algae created the Earth as we know it, with its oxygen-rich atmosphere, abundant oceans, and corals reefs. Crude oil is made of dead algae, and algae are the ancestors of all plants. Today, algae is big business, from seaweed snacks to biofuels to plastics. Ruth takes readers on an around-the-world, behind-the-scenes, and into-the-kitchen tour of her subject, delighting and amazing with stories of the good, the bad, and the up-and-coming.

Ruth is also the author of “A Garden of Marvels: How We Discovered the Flowers Have Sex, Leaves Eat Air, and Other Secrets of Plants” (Morrow/HarperCollins, February, 2014). Feeling frustrated by plants that fail to thrive, Ruth sets out to understand the basics of botany and become a better gardener. To do so, she retraces the progress of the first botanists who discovered the basics of how plants work, and also visits modern gardeners, farmers, and botanists to discover the science behind extraordinary plants.

In “Paradise Under Glass” (Morrow/HarperCollins, 2010), following a devastating personal crisis, Ruth chronicles her creation of a small conservatory at her home and her journey from brown thumb to green, as well as the lessons of personal loss and rebirth. Along the way, she weaves in the history of conservatories from orangeries to the hermetically-sealed Biosphere in Arizona. Carol Stocker of the Boston Globe called Paradise Under Glassmy favorite gardening book of the year.