Cast your Vote for the AmericanHort Officers & new Board of Directors members

AmericanHort is governed by a dedicated and passionate Board of Directors. A list of existing Board Members can be found on here.

Please vote for these nominees for Chairman and Vice Chairman of the AmericanHort board of directors.
Cole Mangum Profile Image


Cole Mangum
Bell Nursery USA LLC

Cole Mangum is vice president of operations for Bell Nursery in Elkridge, MD, one of the nation’s largest growers of annuals and perennials. Cole oversees operations across 8 facilities as well as coordinating a team of category managers who manage shipping of finished product. A graduate of Salisbury University, Cole has dedicated himself to advocating for various facets for the industry over the course of his career. He has served on the National Leadership Cabinet for the Seed Your Future initiative, as Horticulture Representative for the Maryland Agricultural Commission, and is a board member for the Greenhouse Grower Technology advisory board. Cole joined the AmericanHort board of directors in 2017 and remains committed to keeping the horticulture strong and as a viable career path long into the future – both at the local and national level. He and his wife live in the Annapolis, MD area with their two young children.

Jon Reelhorn Headshot

Vice Chairman

Jon Reelhorn
Belmont Nursery

Jon Reelhorn is owner and president of Belmont Nursery located in Fresno, Calif. Like many successful businesses, Jon’s company values come from the top down. Belmont Nursery is a third-generation business that loves being part of their local community and includes nursery growing, greenhouse growing, and a retail garden center. Jon is a graduate of Fresno State University with a degree in Plant Science, a graduate of the California Ag Leadership Program and a graduate of EAGL, the Executive Academy for Growth and Leadership. Jon is very active in his industry having served as a board member with the California Farm Bureau and California Nursery and Landscape Association (now Plant California Association), he held several committee roles with the American Nursery and Landscape Association (ANLA) and has been chairman of the Horticultural Research Institute (HRI). Today, Jon currently serves as chairman of the board for New Hope Community Church. He enjoys hiking, golf and travel and is passionate about plants, baseball, and his dog Crash

Please vote for these three nominees for the AmericanHort Board of Directors, 2021-2024 term:
Rob Lando Headshot

Board of Directors

Rob Lando
AgriNomix LLC

Rob’s Oberlin, Ohio based AgriNomix is North America’s largest supplier of automation to nurseries and greenhouses. He and 3 grower partners formed AgriNomix (formerly Flier USA) in 1994 to provide local sales and service for high-tech Dutch made automation.  While continuing to do so, the company has become a sizable domestic designer and manufacturer as well.  He became sole owner of the business in 2002.  In addition to his day job, Rob is an active board member for Neighborhood Alliance, a North East Ohio non-profit which provides essential services to Lorain County residents in all stages of life.  He is a Vancouver native, and a US/Canadian dual citizen who moved to the US when he was 19.  Prior to AgriNomix, Lando served as senior vice president responsible for sales and service at Bouldin & Lawson of McMinnville, TN, and he started his journey in the horticulture industry with Langley Peat Moss of Fort Langley, BC in 1980.  Prior to being elected to the AmericanHort board of directors, Rob served as a member on the AmericanHort Finance Committee.

Steve Mostardi Headshot

Board of Directors

Steve Mostardi
Mostardi Nursery

Steve Mostardi is owner and general manager of Mostardi Nursery, a retail garden center located in Newtown Square, Pennsylvania. He is a third-generation nurseryman and a Pennsylvania Certified Horticulturist with a lifelong interest in the world of plants. In addition to growing up in the nursery business, he attended the Arboretum School of the Barnes Foundation, as well as the Ambler Campus of Temple University.

He is currently a member of the board of directors of the Pennsylvania Horticultural Society, while also serving as Chairman of the P.H.S. Gold Medal Plant Award Committee. In addition, he is honored to serve as one of the judges for horticultural exhibits at the Philadelphia Flower Show. On a national level, he recently served as president of the Horticultural Research Institute, the AmericanHort Foundation. In his spare time, he and his wife are busy taming two acres of woodlands and wildlife at their home in Media, PA.

Lyndsi Oestmann Headshot

Board of Directors

Lyndsi Oestmann
Loma Vista Nursery

Lyndsi Oestmann grew up in the nursery business started by father, Mark Clear. She pursued a degree in Business from Kansas State University with no intention of returning to the nursery. However, in 2004 she began her full-time career in the nursery industry and has worked in all aspects of the nursery from field production and learning the art of pruning young trees, to accounting and payroll. Lyndsi now serves as president of Loma Vista Nursery where she oversees all strategic and operational responsibility for 300-acres of container production, 500 acres of field production with sales predominately focused on the Midwest and mountain states. Lyndsi prides herself in being an active and highly involved participant in the green industry. She served as a 5-year board member of Kansas Nursery and Landscape Association and as board president in 2016. She is a member of AmericanHort Community Landscape Connector group, member of Johnson County Community College Horticulture Advisory Board, member of the Western Nursery and Landscape Association board, recipient of WNLA’s State Association Leader Award in 2017, and Horticultural Industries Leadership Awards Class of 2020. Our of concern for both the present and future of horticulture, Lyndsi is dedicated to recruiting youth into the industry. In her free time, she enjoys spending time with her two daughters and husband, teaching Sunday School, leading her daughters’ Girl Scout Troop, coaching softball, and reading.

To support this mission and the future of our industry, please cast your vote by Friday, April 9th.

Each Class A Member Company* of AmericanHort is eligible to complete a ballot for the board of directors one time. You will need to be signed into your AmericanHort account to vote. Only one vote per member company will be considered in final tally.

If you have any questions, please contact Amanda Holton at new email