HPSO Board and Staff

The last election of the board was conducted online in November 2021.

Barb Christopher

Barb Christopher, President (First Term)

Barb was museum curator, director and an appraiser for almost 30 years. She has also offered garden coaching and design services. A Master Gardener since 2011, she joined the HPSO board in 2012. She served as an HPSO Vice President from 2016 to 2020. She has served as Chair the Garden Travel Committee and as Chair of the Membership & Development Committee. She is active in the Hortlandia Committee and Speaker Program Committees. She has served as tour planner and escort on HPSO tours to Wales, Devon/Cornwall, and Spain. Barb grew up among gardeners in Kansas City. She now gardens in Northeast Portland.

Kate McMillan

Kate Anchev, Vice President (Second Term)

Kate grew up in Connecticut, and has since lived in London, Washington DC, San Francisco, and now Portland. She fell head first into gardening with the purchase of her first home​ (and garden)​ in SE Portland in 2008. She’s owned and runs a web design company, Outbox Online, since 2009, and also a garden design business, Cultiverity, since 2014.  ​Kate​ has been a HPSO board member since 2016, and​ is a founder of the HPSO blog. Kate is a strong advocate for HPSO's outreach activities, serving as Chair of the Media and Outreach Committee. Kate worked to update the HPSO website, and she ​has a keen interest in amplifying HPSO efforts reaching a new (and younger) audience.​ Her Southeast Portland garden is a certified Backyard Habitat, and is filled with drought tolerant, low-maintenance plants from all over the world that showcase her love of texture and color.

Eloise Morgan

Eloise Morgan, Vice President (First Term)

Eloise L. Morgan has been a director at large and the managing editor of the HPSO Quarterly magazine since 2018. She is a member of the Society’s Clark County Interest Group, the Westside Study Group and other HPSO committees. A transplant from New York’s Westchester County, she volunteered to assist with the production of the Quarterly immediately upon moving to the Portland, Oregon area. A retired lawyer, Eloise has extensive volunteer experience in writing and editing, and she has been a member and officer of numerous non- profit boards, public school organizations and municipal committees. She was also a municipal historian for two decades. A long-time amateur gardener, Eloise and her husband Bob are creating an eclectic garden at their Vancouver, Washington home.

Beth Hansen-Winter

Beth Winter, Vice President (First Term)

Beth Hansen-Winter is a photographer and book designer.  She is co-chair of HPSO's Botanical Exhibits Committee, and serves on the Nominating Committee as well as the Hortlandia Committee. She has also served as chair of the HPSO/Garden Conservancy Open Garden Days in recent years. In 2020 she became the Board Liaison to the HPSO Special Interest Groups. Beth gardens in Beavercreek, OR.


Jeanne DeBenedetti-KeyesJeanne DeBenedetti-Keyes, Secretary (First Term)

Jeanne Debenedetti-Keyes works for the Bureau of Land Management (BLM) as a GIS (Geographic Information Systems) Specialist, providing database development, analysis and mapping services to manage BLM public lands in Oregon and Washington. She was a key member of the HPSO Gen(i)us Program Series for years. She serves as Chair of the Nominating Committee. She is a contributor to the HPSO Quarterly and volunteers at various HPSO activities. Jeanne gardens in Southeast Portland.

John BarkerJohn Barker, Treasurer (First Term)

John Barker has practiced as an architect in Portland since 1979.  He has a lifelong interest in gardening and has designed and maintained landscaping for residential rental properties and his church for many years. He has participated in several HPSO international tours. John has served for many years on the boards of community organizations, including Community Music Center, Oregon Repertory Singers, and Westminster Presbyterian Church. He has served as president and been an active board member of the Belmont Neighborhood Association and Belmont Area Business Association and was an organizer of the Belmont Street Fair for nine years. He is involved in HPSO activities including tours, open gardens, After Hours, and other areas. John gardens in Southeast Portland.

Loree Bohl

Loree Bohl, Director-at-Large (Third Term)

Loree began gardening in NE Portland in 2005. Her love for agaves, cactus and all things spiky, was the inspiration for her blog name, Danger Garden (thedangergarden.com), which she began in early 2009. Looking at her garden, and blog, you might think she comes from the Desert Southwest but she’s actually a Pacific Northwest native who thrives on the vibrant horticulture scene here in Portland. A freelance garden writer, Loree is a firm believer there is always room for one more plant. She explored her gardening philosophy in 2021 with her new book, Fearless Gardening.

Vicki Green

Vicki Green, Director-at-Large (First Term)

Vicki brings people and project management skills—stemming from her 35 years of experience in the high-tech sector— to the HPSO Board of Directors. She has volunteered regularly for years in the community—most prominently for the Oregon Food Bank. Vicki purchased a home on a one- acre lot in Vancouver, WA. in 2010, having had no previous gardening experience. It was wall-to-wall grass. She has had to learn by trial and error how to build beds and borders, and she found HPSO speaker programs and Study Weekends to be extremely helpful. She serves as the moderator for the HPSO on-line Community Forum and is a member of the Open Garden Committee as well as the Hortlandia Committee. She also enjoys travel with HPSO garden tours.

Madeline Forsyth

Madeline Forsyth, Director-at-Large (First Term)

Madeline was a Registered Nurse for 23 years, mostly at Adventist Medical Center, until her retirement in 2005. Upon her retirement, she took the Master Gardener program and began volunteering at the International Rose Test Garden in Washington Park. She volunteers there weekly during the growing season and serves as a tour guide as well as Vice-President of their Friends Board of Directors. While her children were growing up, she was very active in a variety of parents’ groups. She is an active participant in HPSO’s Open Garden Program. She is the co-chair of the Garden Travel Committee and has been on many HPSO garden trips. Madeline gardens on a quarter-acre lot in Gresham, OR.


Barbara FrisellaBarbara Frisella, Director at Large (First Term)

Gardeners and dog owners seem to be some of the best people in the world. After a 34-year career, Barbara is now an empty nester except for her beloved companion brindle dog Charlie. A member of HPSO for several years, she has frequently volunteered at Plant Nerd Nights and Hortlandia. Her love for gardens and gardening began in the far northeast of Portland, where her parents introduced her to growing and nurturing the flora and fauna on their half-acre suburban yard. She currently gardens at her home in Beaverton, OR.

Lisa Fuller

Lisa Fuller, Director-at-Large (First Term)

After 10 years as HPSO’s Assistant Administrator, Lisa retired from the position in 2020. She continues to be active in the organization in a variety of ways. Most notably, she is Co-Chair of the Library Committee, and making the HPSO Library accessible to members remains important to her. She has been a regular volunteer at Hortlandia, Study Weekend, and speaker programs and is involved in four HPSO interest groups, two of which she helped found. She has been a longtime contributor to The HPSO Quarterly, as well as to the HPSO Bulletin. Lisa has been gardening since the fourth grade—from Los Angeles to New Orleans (where she also owned a successful floral design business), and now Southwest Portland.

Harry LandersHarry Landers, Director-at-Large (Second Term)

Harry Landers has a degree in Horticulture from North Dakota State University.  After working in horticulture in Milwaukee, Wisconsin, he moved to Portland and worked for 28 years at the International Rose Test Gardens, where he was named curator in 2015. During his time at the Garden, Harry increased its number of roses from around 3,500 specimens to just under 11,000, and the Garden gained recognition as one of the top 100 rose gardens in the world and top 10 public gardens in the U.S.  Representing the International Rose Test Garden, Harry joined the board of the Portland Rose Society in 2005 and served as program chair until 2018. He is an active Royal Rosarian and the Royal Gardner for the second time. He's also active with Clackamas Master Gardeners. Harry's diverse experience is an asset to HPSO activities. Harry gardens in Clackamas, OR.

Zoe NielsenZoe Nielsen, Director-at-Large (First Term)

Originally from Australia, Zoe developed an interest in plants early on by observing the local subtropical rainforest and learning from her botanist mother. She went on to study landscape architecture, but later switched to law. She eventually worked in environmental law and then in international relations. She has experience organizing conferences, briefing speakers, developing agendas, organizing publicity, and following bylaws. She serves as Chair of the Speaker Programs Committee for HPSO. When she lived in Vancouver, British Columbia, she was the founding chair of two non-profit groups. Zoe now gardens in White Salmon, Washington, and has started an interest group there for HPSO members in the Columbia Gorge. She is particularly interested in dry gardening.

Phillip Oliver, Director-at-Large (Third Term)Phillip Oliver

Phillip Oliver relocated to Vancouver, Washington from Alabama in 2015. He is a retired librarian from the University of North Alabama. He is a long-time avid gardener and is active on HPSO's Library & Book Committee and oversees sales of books at HPSO events. He contributes book reviews to the HPSO Quarterly and shares photos on HPSO's social media sites as well as his personal blog Dirt Therapy (http://phillipoliver.blogspot.com). He works at a local garden center near his home in Vancouver.

Adria Sparhawk

Adria Sparhawk, Director-at-Large (Third Term)

Adria Sparhawk was the owner of Thicket Nursery for many years, and she works as a garden designer and coach. She has led the After Hours Committee organizing social events for HPSO members supporting local nurseries.  She assists with HPSO social media outreach via Instagram posts on Wild Wednesdays, contributes to Facebook and blog articles. Adria gardens in Northeast Portland.

Randi ThomasRandi Thomas, Director-at-Large (First Term)

Randi is retired from the Bonneville Power Administration after 35 years. She started as an engineer and eventually worked her way up to various management and leadership positions. She is a dedicated volunteer, most notably as the Volunteer Coordinator for Hortlandia. Other organizations she has volunteered for include the Master Gardeners, the Rogerson Clematis Society, her local Watershed Council, and her local food pantry. Randi describes herself as more of a plant geek than a designer. She is currently working on making her Gladstone, OR garden lower-maintenance and more drought-tolerant.

Linda WisnerLinda Wisner, Director-at-Large (First Term)

Designer and author Linda Wisner brings a great deal of experience to the HPSO Board, having served as Director from 2010–2012, Vice-President from 2012–2014, and President from 2014–2016. She also co-chaired our 2015 Study Weekend and was highly involved in Study Weekend 2019. In addition, she is the designer of the HPSO Quarterly. Linda gardens on Sauvie Island. Her “Flicker Farm” consists of over an acre of ornamental gardens, edibles, and meadows.

Jim Rondone

Jim Rondone, Immediate Past President

Jim joined the HPSO Board in 2007 after serving on the Education and Gen(i)us Committees. In 2010, he became First Vice President, and served as President from 2012-2014. He served as Immediate Past President until returning as President when a vacancy occurred in April 2016. In 2020, he stepped back into the job of Immediate Past President. Jim continues to be active with numerous HPSO committees including Hortlandia, Membership and Development, On Site, Nominating and Garden Travel. Jim is also a veteran HPSO tour leader including trips to The Netherlands, Belgium, Germany, England and Scandinavia. Jim gardens in Southwest Portland.




Beth Sorensen, Office Director
Hayden Brown, Program Coordinator
Cathy Bickerton, Bookkeeper