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Certified Horticulturist
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The American Society for Horticultural Science Certified Horticulturist (ASHS-CH) professional certification program is the national credential validating the knowledge and skills of working horticultural practitioners in the industry of horticulture.

United States

District of Columbia

Gabriel Bandele, CH 
PO Box 21540 
Washington, DC 20009

"We are nature (not just a part of it). As horticulturists, we co-create with the plants we work with. We can become stewards of the earth and by assisting others in heightening their awareness and appreciation of our plant/natural environment we can also become part of the much needed solution."



Jonathan Sinclair, PhD, CH
Hollister, California

"I graduated with a PhD from Texas A&M University in 2003 and have built on the training I received there ever since in my professional career as a plant breeder. Completing the Certified Horticulture certification has been a good way to maintain a high-quality knowledge base in various other areas of Horticulture as well."




Gail McLaughlin, CH
5315 E. Thrill Pl.
Denver, CO 80207

"Testing for and earning the Certified Horticulturist accreditation have provided welcome validation of my professional accomplishments. I am finding that this endorsement opens doors for communication at a new level with other practitioners in the field, and with potential employers."


David Risley, CH
3540 Holland Street
Wheat Ridge, CO 80033

David earned a BS in horticulture from CSU in 2009. He has worked in both retail and wholesale growing operations, and currently is head grower for an indoor specialty crop production facility. He specializes in indoor crop production/technology and urban farming.


Ashley Hansen, CH
3 Strong Rd.
West Granby, CT 06090


Joseph Egolf, CH
6692A Lancaster Pike
Hockessin, DE 19707


Angie L. Carroll, CH 
411 Florida Avenue 
Fort Lauderdale, FL 33312
H 954-689-7905

Angie Carroll has been a practicing landscape designer for over thirteen years specializing in design/build projects for Homeowner Associations and high end residential clients.


Debra S. Hughes, CH
2544 1st Street, Apt. 201
Fort Myers, FL 33901

Ms. Hughes is the horticulturist at the Edison & Ford Winter Estates in Fort Myers, FL, 13 acres of a historical landscape and museum dedicated to Thomas Edison and Henry Ford who spent winters in the early 1900’s.


David Douglass Owen, CH
PO Box 94
Kapa’a, HI 96746


Kevin Donnelly, CH 
223 E. Forest Knoll Drive 
Palatine, IL 60074

As Quality Control supervisor at 
Midwest Trading Horticultural Supplies, Inc., he oversees testing and research on horticultural soils for the greenhouse, nursery, landscape, and green roof market. In addition, Donnelly gives educational tours of the facility to customers, students, industry groups and the occasional foreign dignitary.

Breanne Heath
Growing Home, Inc.
Wood Street Urban Farm
5814 S. Wood St.
Chicago, IL 60636

Breanne has a bachelor's degree in biology and works as a field training specialist at a certified organic farm on the south side of Chicago. There, she teaches people with barriers to employment in agricultural and horticultural techniques, while managing the grounds and a production plot for a family shelter, soup kitchen and food pantry. Breanne also teaches community workshops in growing and food preservation while maintaining her own rooftop farm and chickens in the city.


Stephanie Stacy, CH

Stephanie has been in the industry since 1998, starting at a small, family garden center and growing to owning Garden's Gate Garden Center and Landscaping in Ottawa, IL, along with her husband, Dave. In addition, Stephanie teaches classes at Illinois Valley Community College and offers hands-on seminars to adults and children at her garden center.


Barbara L. Fuelberth, CH
1607 280th Avenue
Spirit Lake, IA 51360
W 712-336-2085; F 712-336-8118

She received her Master Gardener training and began working at Ferguson's Garden Center in Spirit Lake, Iowa, as a summer job. In 2009, she started full-time at Ferguson's and became Nursery Manager in November of 2010.


Mike Belco, CH
1400 East Kearsley Street
Flint, MI 48503

Mike is the Integrated Pest Management Specialist at Applewood, the 34 acre C.S. Mott estate in Flint, MI. He performs a wide variety of horticultural duties, including caring for the bowling green, the broadleaf evergreen collection, the foliage shade garden, the hydrangea collection, the apple orchard, and the diversity garden that attracts beneficial insects to the orchard. Environmental stewardship is a top priority for Applewood, and Mike leads the estate’s efforts to promote plant health while respecting nature and the environment. He also presents educational information to visitors and community gardening groups on environmentally friendly gardening practices, landscape plant maintenance and landscape design.

He says, “I’m proud to be a new member of the ASHS Certified Horticulturist group, and look forward to learning more about the organization and how it can help me to share horticultural knowledge with my associates and our visitors.”

Andrew D. Ewing, CH

1400 E. Kearsley St., Flint, MI 48503

 Andrew Ewing earned a BS in horticulture from Michigan State University and works as a horticulturist at the Applewood Estate in Flint, MI. Applewood is the 36 acre historic estate of Charles Stewart Mott, a pioneer of the automobile industry.


Jody A. Botto, CH
President, Lawn Groomers, Inc.
1909 Gravois Rd
High Ridge, MO 63049
W 636-677-6263; F 636-677-6283


Richard Michael Johnson, CH
PO Box 1238
Plains, MT 59859
W 406-826-3881; F 406-826-5700

Continuing professional educational opportunities, accredited by the horticultural industry’s premier national organization, form the basis of his participation and interest in the ASHS certification program.

New Jersey

Adam A. Glas, CH 
361 Bridgeton Pike 
Mullica Hill, NJ 08062

Matthew F. Sarlo, CH
363 Lloyd Road
Aberdeen, NJ 07747

Glenn White, CH
261 Marigold Ct
Toms River, NJ 08753

"Becoming an ASHS Certified Horticulturist means a lot to me. It reflects my commitment to the industry and to my customers."

Damien S. Ball, CH 
908 Borden Avenue 
Point Pleasant, NJ 08742

New York

Jeb Stuart-Bullock
Joy of Gardening, Proprietress
Garden Design and Maintenance
Millwood, NY

Kim Eierman
2 Deshon Avenue
Bronxville, New York 10708

Kim is an environmental horticulturist specializing in eco-beneficial landscapes and native plants. In addition to consulting with clients on best practices for ecological design and plant selection, she speaks, writes and teaches on these topics. Kim is an instructor at New York Botanical Garden and Brooklyn Botanic Garden. She is an Adjunct Professor at Westchester Community College’s “Go Native U”, administered by the Native Plant Center, and is an active speaker for garden clubs, nature centers, Audubon chapters, and beekeepers.


James Newman
Floral Park, N.Y.

Following a virtually lifelong interest in gardening and many years working in an unrelated field, Jim Newman graduated from Farmingdale State College with an A.A.S. Degree in Ornamental Horticulture.  He currently works for the Fanny Dwight Clark Memorial Garden, Inc., a non-profit organization founded to support, enhance and preserve Clark Botanic Garden in Albertson, N.Y.  Jim enjoys managing the greenhouse at Clark Garden as well as performing many other and varied tasks needed to support a public garden.  He also enjoys interacting with garden volunteers and visitors to the garden seeking information about the diverse garden plantings.

Peter Strom
7 Fowler Avenue
Ossining, NY 10562

Peter is the owner of Strom Horticultural Services, a residential fine gardening company. He is an ISA Certified Arborist. He enjoys pruning woody plants as well as design and care of gardens with spring blooming bulbs, perennials and choice annuals. When not in the garden he enjoys hiking in the Hudson Highlands or touring gardens in the U.S. and abroad.


Ryan Torres
Great Neck, NY

Ryan Santelli Torres graduated with an A A S from Farmingdale State University in Ornamental Horticulture. She is a Certified Arborist, Pesticide Applicator and Nursery and Landscape Professional. Ryan currently is the horticulturist for the Town of North Hempstead where she is also the director of Clark Botanic Garden in Albertson NY. Ryan also is an educator at the Bronx Botanic Garden in various topics of insect, disease and weed ID and management. Ryan enjoys educating people in landscape design, maintenance and horticulture topics.


Andrea Meckley, CH
PO Box 984
Logandale, NV 89021

North Carolina

Andrew Currin, CH
6410 Wimberly Rd.
Willow Spring, NC 27592

"I received my bachelor degree in ornamental horticulture from NC State University. My career is in commercial horticulture and hobbies include organic gardening, beekeeping, and teaching others about organic gardening and beekeeping." 


Joseph Moore, CH
191 South Valley Stret
Liberty, NC 27298


Becoming a Certified Horticulturist with ASHS is important to me because it validates my skills in the horticulture trade and also shows commitment to my employer." 




Robert Joseph Dreisbach, Jr.
4958 Madison Dr.
Brookhaven PA 19015

Robert has a Bachelor of Arts Degree in Art, with a concentration in Graphic Design from Salisbury University 1998.  Currently he is a Foreman and Nursery manager for a landscaping installation company in the Philadelphia metropolitan area.


Joseph M. Egolf, CH
22 West Main Street, #3 
Middletown, PA 17057

Laurice Formato, CH
20 Pennsylvania Ave.
Havertown, PA 19083

Erin M. Heller, CH
1436 Mt. Joy
Manheim, PA 17545

Troy Buechel, CH 
127 South Fifth Street, Suite 300 
Quakertown, PA 18951
W 215-529-1280; F 215-529-1289

"The ASHS Certified Horticulturist title adds credibility to my position with Premier Tech Horticulture's Grower Services Department. The professional greenhouse customers, in whom I deal with, can see my commitment to our industry."



Jeremiah Davis, CH
(214) 924-0948

Jeremiah runs his own tree assessment consultancy – Yggdrasil Consulting – after gaining amenity horticulture experience with the Dallas Arboretum and production arborist experience with the Davey Tree Expert Company. Prior to working outdoors, he was a professional computer programmer for a decade. The transition was a profession / hobby swap after earning an Associate of Applied Science degree in Horticulture from Tarrant County College. In addition to being a CH, he is an International Society of Arboriculture (ISA) Certified Arborist [TX-4114A] and is Tree Risk Assessment Qualified.


Kyle Jordan, CH
Houston, Texas

A graduate of Texas A&M University, Kyle has interests in many different areas of horticulture. Prior to his current position in the landscape department of a home owners/property owners association, he has worked in public gardens, tropical butterfly habitat, a specialty retail nursery and a teaching and research greenhouse. He looks forward to using the Certified Horticulturist program to find ways to reduce the environmental impact of the green industry while employing economically sustainable methods, and re-connecting people with plants in particular and the natural world in general.



Heidi Kratsch, PhD, CH
1040 N. 130W, Apt. 103
Logan, UT 84341
W 435-797-8124; F 435-797-3376

"This [ASHS Certified Horticulturist designation] reaffirms my commitment to professionalism in horticulture. I hope to inspire my clients and students to become active in professional organizations and to become lifelong learners."



Richard L. Malchow, CH
1217 E. Gunn Street #6
Appleton, WI 54915



Michael R. Baldwin
1416 E. Custer St., A
Laramie, Wy, 82070
(509) 885-0027


Bobbie Jo Holder, CH
Owner Native Elements
2204 Stedman Street
Cody, WY 82414

Andy B. Smith, CH
5520 Pilot Peak Road
Laramie, WY 82070



Saudi Arabia

Raju Manchakkal Thupran, CH
Horticulture Specialist
King Abdullah University of Science and Technology
Thuwal, Saudi Arabia

Trained in professional golf turf management at Rutgers, and Urban environmental management from WWF. Raju has a Bachelor's degree in agriculture, and a Masters in journalism and mass communication. He has 20 years of diversified work experience in agricultural extension, farming, facilities, desert landscaping, and ornamental horticulture. Author of "The Green Earth", a text book for vocational higher secondary agriculture education. Currently, Raju is Horticulture Specialist at King Abdullah University of Science and Technology in the Kingdom of Saudi Arabia.



1018 Duke Street
Alexandria, VA 22314
Phone: 703.836.4606