About Lynn

Agronomist, Plant Pathology, Nematode Analysis, Plant Disorder Consultant, Nutrient Recommendations and Expert Court Consultant as well as Horticultural Consultant to all facets of the Industry from Turf, Nursery, Farm, Interior & Exterior Landscaping, etc.

45 Years of Experience

​Tropical Plant and Soil Expert

About Me

​Lynn is an expert in the industry, as well as a hands-on consultant and has been a star class speaker for many facets of the industry from Day Lilies to Palm Trees to farms or anything or anywhere you can think of!

Throw a dart on the map of the world- he has probably been there! Awards don’t exist for this unique amazing individual. Lynn is unparalleled in his profession and tirelessly and dedicatedly works to help everyone who needs it. We are here to improve and save the agricultural and horticultural communities across the world.

Curriculum Vitae


Duke University, Durham North Carolina
Majored in Biology & Chemistry-
Worked in Cancer Research Unit, Duke University Hospital

Jacksonville University, Jacksonville, Florida
Majored in Biology & Chemistry
President and Founder, Environmental Action Group

Professional Experience

President – Lynn Griffith – Tropical Plant and Soil Expert                       2013-Present

  • Owner of A&L Southern Agricultural Laboratories, LLC  1985- 2013

A&L is the oldest and largest agricultural testing and consulting firm in Florida.  A&L Southern is part of the largest chain of agricultural testing labs in the United States with offices nationwide.  A&L Southern provided testing and consulting services to an active customer list of 12,000 agriculture-related companies in Florida, the Caribbean, Central and South America, and worldwide.  I had personally and regularly consulted for clients in 33 countries around the world and continue to do so with my new company.

  • Technical Field Representative     1980- 1985

A&L Southern Agricultural Laboratories, Inc. Ft. Lauderdale FL       

Prior to 1980

  • Landscape Maintenance Foreman – Del-Aire Golf Club – Delray Beach, FL
  • Head Nursery Grower & Foreman – Delray Nursery & Landscaping – Delray Beach, FL
  • Head Nursery Grower & Foreman – Gold Hill Nursery – Delray Beach, FL
  • Laboratory Supervisor (3 years) – Florida Department of Agriculture- Davie, FL
Professional Speaking Engagements

I’ve given technical speeches, lectures, and seminars to agricultural firms, societies, and associations regularly since 1982, averaging more than 15 engagements each year throughout the US and around the world.

Most Recent:

  • December 2021  Texas A&M University
  • November 2021 Ohio Nursery and Landscape Association Dayton, Columbus, Cleveland 6 seminars
  • November 2021 Landscape Association of Florida  2 seminars
  • October 2021 Marijuana farms in Illinois and Arkansas
  • September 2021  Seville University  Mansfield, Texas
  • August 2021  Far West Show  Portland, Oregon  2 seminars
  • May 2021 Landscape Inspectors Association of Florida  2 seminars
  • May 2021 Amazon world headquarters  Seattle, Washington  2 seminars
  • April 2021 Zoom seminar with breeders in France
  • March 2021  SC Green  Columbia, South Carolina 2 seminars
  • March 2021 Landscape Inspectors Association of Florida
  • August 2020 Terra Garden Solutions  2 seminars Naples, FL
  • July 2019  Cultivate  Columbus, Ohio  2  seminars
  • July 2019  Winfield United  Seminar  Fort Myers, FL
  • July 2019  Winfield United  Seminar  Boca Raton, FL
  • July 2019  Michigan State University Webinar

Other Technical Seminars include:

  • The OFA Short Course (Cultivate) (seven times)
  • Pennsylvania Floral Industry Association
  • American Hemerocallis Society (three times)
  • Landscape Ontario Interiorscape Symposium (two times)
  • Ag Export in Guatemala
  • South Florida Community College (six times)
  • Chesapeake Green Maryland
  • Maryland Nursery and Landscape Association
  • Lower Cape Cod Rose Society
  • Greenhouse Experience- Cleveland
  • Mid Atlantic Interior Landscape Conference (nine times)
  • Fersan-Domincan Republic
  • Helena Chemical Company
  • Pro Source One
  • Central Florida Rose Society (two times)
  • American Rose Society National Meeting (two times)
  • Palm Beach Rose Society
  • Professional Landscape Management Course (seven times)
  • National Tropical Foliage Short Course (four times)
  • 2005 Herb Conference- Mexico
  • Florida State Horticulture Society (three times)
  • Florida Chapter- International Society of Arboriculture (two times)
  • Great Southern Tree Conference
  • Florida Nurserymen and Grower’s Association (four times)
  • South Carolina Rose Society
  • Las Vegas Rose Society
  • Chicago Rose Society
  • National Arborists Association National Meeting
  • International Agronomy Seminar- Costa Rica
  • El Salvador Nursery Association
  • Charlotte Rose Society
  • Great Southern Tree Conference
  • Interior Business Conference and Trade Show
  • Florida Turfgrass Association (four times)
  • International Plug and Cutting Conference
  • Dade Country Golf Course Superintendent’s Association (twice)
  • Landscape Inspector’s Association of Florida (five times)
  • Tree’s Florida Conference
  • Willoway Gardens Ohio (five times)
  • Northern Ohio Greenhouse Growers
  • Long Island Nursery Association
  • Bailey Nurseries- Minneapolis, Minnesota
  • Connecticut Nursery Association
  • Hulett Environmental Services
  • Pro Tek Pest Control (five times )
  • California Interior Plantscape Association (four times)
  • Gardens By the Bay- Singapore
  • Fairchild Tropical Gardens
  • Harrell’s National Sales Meeting 2016 (twice)
  • Hulett Environmental Services
  • Landscape Inspectors’ Association of Florida (four times)
  • Palm Beach Hibiscus Society
  • Harell’s Fertilizer – Minneapolis
  • Gardens of the Bay – Singapore
  • Ngogolo Greens – South Africa
  • Hawaii Export Nursery Association (September 2019)
Additional Experience and Areas of Expertise

Expert Witness Testimony:

  • Have provided expert witness testimony in agricultural and horticultural cases approximately 200 times, including over 20 times in State or Federal Court. (Partial list available)

Areas of Expertise:

  • Soil Plant and water analysis
  • Plant Nutrition
  • Agronomy
  • Water Quality
  • Pest and Disease Control
  • Plant Physiology
  • Certified Crop Advisor in Florida and throughout the US
  • Certified by the American Society of Agronomy
  • I give seminars twice a year to other local CCAs so they may earn CEUs and retain certification.
Professional Associations
  • Florida Nursery Landscape and Growers Association
  • Florida Foliage Association
  • Florida Turfgrass Producers Association
  • Florida Turfgrass Association
  • Ohio Florist’s Association
  • Palm Beach Wholesale Growers Association
  • Florida State Horticulture Society
  • Palm Beach Junior College- “Diagnosing Plant Pathogens” August- October 1986
  • Broward Community College- “Plant Pest Control 2003”- Spring 1988

Advisor to Senator Bob Graham- “Caribbean Basin Initiative Policy” 1989- 1990

Consulting Clients: Included among the thousands of consulting clients are professional arborists, theme parks, sports stadiums, landscape companies, fertilizer dealers, potting soil companies, international resorts and developments, farms, nurseries, celebrity residences, and other consultants.

Technical Publications

Partial list below. Full list available upon request.


  • The Grower’s Guide to Tropical Foliage Plants – Ball Publishing, June 1997
  • Tropical Foliage Disorders – Ball Publishing, January 2002
  • Tropical Foliage Plants – A Grower’s Guide, Second Edition- Ball Publishing, 2007
  • Disorders of Tropical Plants – In final stages of completion

Grower Information/Specific Crop Info

  1. “Bob Hartman Talks About Tissue Culture Possibilities & Realities”- Florists, 1982
  2. “Mist Propagation of Cuttings”- Florida Nurseryman, 1982
  3. “Common Problems with Aglaonemas”- Florida Nurseryman, Sept. 1982
  4. “Areca Palm Production”- Florida Nurseryman, Jan. 1983
  5. “Growing Chamaedoreas”- Florida Nurseryman, Sept. 1983
  6. “Goldcrest Cupressus”- Florist’s Review, 1983
  7. “Tips on Growing Dracaena ‘Massangeana’ Cane”- Florida Nurseryman, 1983
  8. “Flowering Foliage: What’s New and Different”- Florists Review, June 1983
  9. “Flowering Foliage: Bridging the Gap”- Florists Review, June 1983
  10. “Growing Gerbera Daisies”- Florida Nurseryman, April 1983
  11. “Heliconia and Ginger: Cut Flowers with a Future”- Florist’s Review, Aug. 1984
  12. “The New Hybrid Philodendron”- Florists Review, Oct. 1983
  13. “Spathiphyllum- The Peace Lily”- Florida Nurseryman, Aug. 1983
  14. “Fine Tuning Your Aglaonema Production”- Grower Talks, Aug. 1996
  15. “Bacterial Disease Outbreak Threatens Aglaonema Crops”- Growers Talks, Nov. 1996
  16. “Ten Common Grower Misconceptions”- Grower Talks, Oct. 1998
  17. “Ten More Grower Misconceptions”- Grower Talks, Jan. 2000
  18. “Torenia Takes the Heat”- Grower Talks, June 2000
  19. Greenhouse Ferns Made Easy”- Grower Talks, Aug. 2000
  20. “Ten Great Ways to Screw Up a Crop”- Grower Talks, Oct. 2000
  21. “Z Toughest Foliage Plant”- Grower
  22. “Five Tips For Better Spath”- Grower Talks, Jan. 2006
  23. Date Palm Disorders – Pest Pro Magazine, 2014

 Insecticide/Disease/ Pesticides

  1. “Mavrik Aquaflow, Tri-Gard, Avermectin”- Florida Nurseryman, 1984
  2. “The Return of Zectran”- Florist’s Review, Dec. 1983
  3. “Focus on Fungicides”- Florida Nurseryman, Jan. 1984
  4. “Aliette, A Different Kind of Fungicide”- Florist’s Review, June 1984
  5. “New Agricultural Chemicals Readied for Release”- Florida Nurseryman, July 1984
  6. “What’s New in Chemicals”- Florist’s Review, November 1984
  7. “Pesticide Poisoning- Two Case Histories”- The Florida Green, 1985
  8. “Curvularia in Florida Greens”- The Florida Green, 1984
  9. “Controlling Cane Borers and Leaf Spots”- Interior Landscape Industry, Dec. 1984
  10. “Beware of Ambrosia Beetles” – Florida Nurseryman, April 1982
  11. “Preventing and Controlling Cylindrocladium on Spathiphyllum”- Florida Nurseryman, March 1984
  12. “Controlling Plant Diseases- Diagnose the Problem”- Florida Nurseryman, Dec. 1982
  13. “Heal Thy Plants”- Interior Landscape Industry, 1984
  14. Disease of Snapdragons and Their Control”- Florida Ornamental Grower Association,     1985
  15. “Evaluation of Antitranspirants for Cold Protection in the Nursery Proc.”- Florida State Horticultural Society, 99: 1986
  16. “Understanding Phytotoxicity”- Landscape & Nursery Digest, July 1995
  17. “Update From The Field”- Grower Talks, Nov. 1999
  18. “Humidity: Blessing or Burden”- Grower Talks, June 2001
  19. “Understanding Soil Borne Diseases”- Interior Business, March/April 2005
  20. “Plant Disease 101”- Interior Business, Feb. 2004
  21. “Aglaonema Bronzing”- Grower Talks, Jan. 2005
  22. “Chilli Thrips”- Grower Talks, Feb. 2006
  23. “Date Palm Disorders”- Pest Pro, Mar. 2014
  24. “Pest Detective-Palm Weevil”- Pest Pro, Mar 2015
  25. “The Lowdown on Microscopic Mites”-Pest Pro, May 2015
  26. “Patch Diseases in Florida Turf”- Florida Turf Digest, Mar.2015

 Water Quality/Watering Practices

  1. “Water Quality on the Golf Course”- The Florida Green, 1984
  2. “Water Quality in the Nursery”- Florida Nurseryman, 1983
  3. “The Overwatering Paradox”- Interior Landscape Industry, 1983
  4. “Watering Interior Plants”- Florida Nurseryman, Feb. 1984
  5. “The Effect of Water Quality on Potting Soil pH”- Landscape & Nursery Digest, Jan.1996
  6. “Humidity-Blessing or Burden” – Grower Talks, June 2001
  7. “Water Quality 101”- Grower Talks, Sept. 2002

 Soils and Fertilizers

  1. “Nutritional Content of Common Potting Soils”- Florida Nurseryman, May 1982
  2. “Nutrients: Mixing and Matching”- Florida Nurseryman, May 1984
  3. “Physical Measurement of Soils”- The Florida Green, June 1984
  4. “Physical Measurements of Potting Soils”- Florida Nurseryman, June 1984
  5. “Foliar Absorption of Nutrients”- Ornamental Outlook, Dec. 2000
  6. “Media: Below the Surface”- Floraculture International, March 2001
  7. “Is There Arsenic in Mulch?”- Grower Talks, Dec. 2003
  8. “Soil Testing- Why?”- Zone 10, March 2004
  9. “Potting Media Industry Faces New Challenges”- Grower Talks, May 2007
  10. “Magnesium Deficiency in Turf and Ornamentals”- Pest Pro July 2015
  11. “PH – What You Probably Don’t Know” – Grower Talks, October 2018

Laboratory Information/ Miscellaneous

  1. “Under Analysis”- Florists Review, 1983
  2. “How to Use a pH Meter”- Florida Nurseryman, March 1985
  3. “Foliar Absorption of Nutrients”- Florida Nurseryman, March 1983
  4. “Leaf Diagnosis: A Diagnostic Tool”- Florida Nurseryman, Aug. 1982
  5. “Southern Survivor”- Florist’s Review, Nov. 1984
  6. “Sources of ‘Hard to Come By’ Nursery Information”- Florida Nurseryman, 1983
  7. “On Hiring a Grower”- Florida Nurseryman, July 1983
  8. “Considering a Consultant”- Florida Nurseryman, July 1982
  9. “Population and the Nursery Industry”- The Green Page, 1985
  10. “Measuring your MMHOS”- Florida Nurseryman, April 1985
  11. “Effects of Plants on Indoor Air Quality”- Indoor Air Quality, 2004
  12. “The Use of GPS on Golf Courses”- Superintendent Magazine, 2005
  13. “Foliage Industry Outlook”- Grower Talks, 2006
  14. “Patch Diseases of Florida Turf” – Florida Turf Digest, 2015
  15. “Water Quality and Florida Turf” – Florida Turf Digest, 2015
  16. “Oddity of the Month – Clathrus” – Pest Pro Magazine, 2015
  17. “Microscopic Mites” – Pest Control Magazine, 2015