Marilee Kuhlmann

Marilee Kuhlmann is a landscape consultant, sustainable garden designer, and president of Urban Water Group. She has participated in award-winning rainwater harvesting projects, LEED projects, and has had gardens featured in Sunset, Pacific Horticulture, and the LA Times. Marilee is the lead on our 4-part Water-Sensitive Landscape Design (WSLD) series commencing with this issue.

UCB Urban Bee Lab

The Urban Bee Lab at University of California Berkeley and Davis is a team of researchers and colleagues who collectively study, conserve, and promote native bee populations. Rollin Coville, lead photographer; Dr. Gordon Frankie, Urban Bee Lab principal investigator; Claudia Van Groningen, volunteer field researcher; Sara Leon Guerrero, Farming for Native Bees project manager; Jaime Pawelek, CA Urban Survey project manager; Mary Schindler, grant writer.

Kathleen Sayce

Kathleen Sayce is an ecologist with a M. Sci. in Botany from Washington State University. She is a board member of the Society for Pacific Coast Native Iris and lives on Willapa Bay, in southwestern Washington where she does wetland and ecological consulting and studies high diversity wild lands. In her low-input garden Kathleen focuses on improving soil and plant health using local amendments and native plants.

Mary-Kate Mackey

Mary-Kate Mackey is an award-winning garden writer and co-author of Sunset’s Secret Gardens—153 Design Ideas from the Pros. She is a contributor to The Sunset Western Garden Book and Sunset’s Gardening in the Northwest. Her 100+ articles have appeared in national and regional publications such as Fine Gardening, Horticulture, and Sunset. Online she writes a monthly column for the U.S. Hartley-Botanic Greenhouse website.

Nancy Carol Carter

Nancy-Carol-CarterNancy Carol Carter researches horticultural history and has published in California Garden, Eden, Journal of San Diego History, and Pacific Horticulture, on numerous topics including horticulturist Kate O. Sessions, the olive industry, and the development of Balboa Park. She is an Associate Editor at California Garden, where her regular column, “Roots,” profiles people important to horticultural development in Southern California.

Forrest Campbell

Forrest Campbell is a landscape contractor throughout the metropolitan Seattle area. He is a 2010 graduate of Edmonds Community College with an Associate of Technical Arts Degree in Horticulture-Landscape Management with a Certificate in Ornamental Horticulture. Forrest is a member of several horticulture societies including Northwest Horticulture Society, is a docent at the Seattle Japanese Garden, and enjoys visiting public and private gardens throughout the Pacific Northwest and Canada.

Virginia Hayes

Virginia Hayes is Curator of the Living Collection at Ganna Walska Lotusland in Santa Barbara, California, where she is responsible for maintaining plant records for the extensive plant collections. Virginia holds a Master’s degree from University California Santa Barbara where she did research on the unique floral characters of lotuses (Nelumbo nucifera) and their variation among wild populations. She writes a popular gardening column for the Santa Barbara Independent and contributes to other California and national publications.

Rick Peterson

Great Plant Picks

Rick Peterson manages the Great Plant Picks educational program at the Elisabeth Miller Botanical Garden in Seattle, Washington. His home garden in Federal Way, which he shares with frequent Pacific Horticulture contributor Richie Steffen, is landscaped with “restrained exuberance” and includes overly abundant collections of species rhododendrons, iris, epimedium, ferns, and a plethora of other rare and unusual flora. Both plead guilty to the current menagerie of potted plants waiting patiently in the driveway…

Ann Northrup

Ann Northrup spent her undergraduate years at the University of Michigan, where she earned a Bachelor of Science in microbiology. Her interest in plant pathology started there, but she took a five-year diversion to work in the field of medical diagnostics at Bio Rad Labs in Richmond, California, and another two years as a molecular biology research assistant at UC Irvine. Returning to plant pathology, Ann earned a master’s degree UC Berkeley. She has worked primarily in disease diagnostics of ornamental plants, first with Soil and Plant Lab in Orange, California, and then with Nurserymen’s Exchange in Half Moon Bay.

Ann currently consults privately in plant pathology and arboriculture and teaches horticulture classes at Foothill College in Los Altos Hills and Merritt College in Oakland. One of her professional pleasures is volunteering at the Sick Plant Clinic. She is also an active volunteer in the UCCE Master Gardener program for Santa Clara County. In her spare time, she enjoys playing her flute in a woodwind quintet in Saratoga and with the Saratoga Community Band conducted by her husband. And of course … she gardens.

Lorene Edwards Forkner

Lorene Edwards Forkner lives and gardens in Seattle where she pursues a good and delicious life filled with family and friends together with all things horticultural, believing that the really good part is in the blending of one’s passions.

Lorene is the author of five garden books including Hortus Miscellaneous (Sasquatch Books), Handmade Garden Projects, and The Timber Press Guide Vegetable Gardening: Pacific Northwest. Lorene is also the author of the newly released “Color In and Out of the Garden,” Abrams Books, 2022. Follow along at She was the editor of Pacific Horticulture from 2012-2019.

Debra Prinzing

Debra Prinzing is an award-winning author, speaker, and a leading advocate for American-grown flowers. She is the creator of, a free online directory that helps consumers find florists, designers, studios, and farms that supply American grown flowers. Debra is the producer and host of the Slow Flowers Podcast with Debra Prinzing, which is available for free download on iTunes or at

Frederique Lavoipierre

Frederique Lavoipierre is the creator and author of “Garden Allies,” a series that ran for 10 years in Pacific Horticulture magazine. She also teaches classes and workshops on sustainable landscaping, including ecological principles, habitat gardens, beneficial insects, soil ecology, freshwater ecology, and aquatic invertebrates. Follow her on Facebook at