Dunn Gardens Staff

Quill Teal-Sullivan Director of Historic Preservation

Born and raised in Seattle, Quill’s affinity for horticulture grew from a childhood spent gardening alongside her mother and exploring the woodland flora of the Cascade Mountains. Quill received her BA in Biology from the Colorado College, and her MS in Public Horticulture form the Longwood Graduate Program and the University of Delaware. Her studies focused on the preservation of historic public gardens and landscapes. Most recently she planned and directed the preservation of the 130-year-old estate gardens at Meadowburn Farm located on the border of New York and New Jersey.  In addition to her involvement at the Dunn Gardens, Quill consults on residential landscape design and garden preservation.

Beth Weir Executive Director

Beth Weir found the Dunn Gardens by luck. She met the then Executive Director at a plant sale in Seattle. That meeting led to her becoming a docent and ultimately the docent director. She stepped into the role of Executive Director three years later. As she grew up in New Zealand within an intense garden culture she has always been interested in all things related to plants: the growing of them, gardens of all kinds and plants. She is the author of The Meaning of a Garden: An Idiosyncratic History of Gardening through the Ages

Carolyn Cox Trust office Administrator

Carolyn Cox moved to the Northshire loop in 1999 and discovered the Dunn Gardens which she considers a beautiful gem of a garden. She served on the Board for several years before joining the staff as Trust Office Administrator. Her work as an active volunteer for PEPs and for her children's schools, with a special emphasis on fundraising events benefits the Dunn Gardens.

Carolyn holds a BA in Literature from the University of San Francisco. Prior to moving to Seattle, she worked in the editorial department of Harper Collins as an assignment editor and for Shaklee Corp. in the Travel Planning Division.

Mark Mosinski Head Gardener

Raised on a farm in southeast Iowa, Mark found endless ways to cultivate an early childhood fascination with plants and flowers. His passion brought him to study horticulture in the Professional Gardener Program at Longwood Gardens in Kennett Square, PA.  Upon graduating, he continued his practical training in a six month student placement at Great Dixter in the UK, followed by six months in Israel with a scholarship at the Jerusalem Botanical Gardens.  Mark returned to Longwood Gardens, where he focused on mixed herbaceous displays and container gardening, while earning his BS in Horticulture from Temple University.  Aside from gardening, Mark is at his happiest pursuing his passion for travel, both on the road in the American wilder lands and exploring natural spaces in the far reaches of the world. 

Beth Neils Bookkeeper

Beth Neils, Bookkeeper, grew up in Bellevue, earned a BS in Biology from MIT and then served in the Army for 8 years. She earned her MS in Accountancy in 2010.