Cannabis Author and Educator
“Penny Barthel strikes the perfect blend of science and beauty in this most approachable guide to growing cannabis in the garden. Your hand will be held from start to glorious (vanilla bean-infused gummy) finish.”
Johanna Silver, author of Growing Weed in the Garden

Book
Ten Speed Press/2021
Purchase here
The Cannabis Gardener teaches you how to choose which strains are right for you and how to cultivate the plants from seed to finished flower. Gorgeous full-color photographs capture each stage of the growing process and show how cannabis plants can be incorporated into your garden design as well as raised beds and containers. After you establish your plants in the garden and monitor them through the flowering stage, you’ll find tips on how to harvest, dry, cure, and store your “grow.” Also included are recipes for savoring your harvest, from salves, tisanes, and tinctures to cannabutter for baking and cooking delicious treats such as CBD gummies flavored with vanilla beans, cheddar crackers, and even cannabis chocolate sauce.
The Cannabis Gardener is an accessible and practical guide for any level of gardener interested in growing their own attractive cannabis plants.

New post
February 2026
Latest on Substack
I spent last week at the Northwest Flower and Garden Festival in Seattle, WA. This enormous, beautiful show is the second largest garden show in America, and as of this year the only one (that I know of) that has had cannabis seeds for sale. For five long days Emily Gogol, head of Grow it From Home (GIFH), and I stood at a small booth helping eager gardeners choose the right type of cannabis seeds for them and their gardens. Some folks came in with specific requests, some were open to trying just about anything, some wanted to grow it just because it’s such a gorgeous plant in the garden! Our booth was wildly popular with the garden loving folks who came to this show. We welcomed folks from young to old, folks who’ve never grown and some who were quite experienced with the gentle herb. But the thing that united us all is that we are gardeners. Seeds are our jam. I mean, who loves new seeds more than gardeners? continue reading…

March 14 11 am – 12:30pm
Berkeley Herbal Center
Join me at Berkeley Herbal Center for a fun and informative workshop where you’ll craft your very own herbal mints!
We will make delicious custom dosed CBD chocolate hearts. This class will provide grounding information about cannabidiol (CBD), an important molecule found in cannabis that offers soothing aid to the body mood without the high. Each participant will then create their own custom dosed batch of 50 tiny CBD infused chocolates to take with them. All equipment and ingredients are included.
Berkeley Herbal Center. 1250 Addison Street, Ste. G, Berkeley, CA 94702
“If plants have IQ, cannabis is a genius. This lovely and practical book gracefully describes how to cultivate, support, encourage, and manifest the genius of this remarkable plant.”
David E. Presti, professor of neurobiology and psychology, University of California, Berkeley

