Johanna is a James Beard Award-winning author who writes mostly about plants and people. Her first book, The Bold Dry Garden: Lessons from the Ruth Bancroft Garden (Timber Press) is available everywhere books are sold.

Johanna spent ten years at Sunset Magazine, beginning with a shovel in her hands and culminating as head of the garden department. In 2016, she oversaw the creation of new editorial test gardens as part of the brand's historic move from Menlo Park to Oakland and Sonoma. Her work has been featured in Architectual Digest, Refinery29, Popsugar, and more.