Guy at work in the Umlauf Sculpture Gardens

Guy has over 40 years experience in all facets of tree care, from field work such as climbing, fertilizing and cabling to competitive climbing,  arborist training instruction and television and radio talks on tree care.  He has written many articles about tree care for the Austin American Statesman and arborist journals such as the internationally published Journal of Arboriculture.  He even co-authored a tree care ordinance which was adopted by the Austin city council.   When it comes to trees he pretty much does it all.

Field Experience:

Guy has provided tree care for:

  • Lady Bird Johnson Wildflower Center, Austin
  • Umlauf Sculpture Gardens, Austin
  • Mayfield Park Cottage Gardens, Austin
  • Inshallah, a historical estate in Hyde Park

    Guy working with “helper” at Mayfield Park.

  • the Pease Mansion, Austin
  • the  old Federal Courthouse, Austin
  • the Treaty Oak, Austin, after its infamous poisoning in 1990 and in 1999, 2009
  • the LBJ Boyhood Home and the LBJ Ranch
  • Audubon Park, New Orleans
  • Breckenridge Park, San Antonio
  • historical estates in Hawaii, Europe and New England
  • 100’s of residential sites in central Texas

Consulting for:

  • Barton Springs Pool tree assessment (2023)
  • Mayfield Park Cottage tree assessment (2015)
  • Moving of live oak in Oak Hill for  TXDOT highway construction. (2014)
  • Waller Creek tunnel project. (2010)
  • Barton Springs tree assessment. (2009)
  • Dozens of site development projects in Austin.
  • Expert witness in tree destruction court cases.

Career Milestones:

  • Named Arborist of the Year (2012 – see blog)
  • One of Texas’ first Certified Treecare Safety Professionals (2008)
  • Winner of the Texas I.S.A. Tree Climbing Championship (1999)
  • Represented TX at the International Tree Climbing Championship,  in New York City area (1999) and in Birmingham, England (1998)
  • Among group that took the first Certified Arborist exam given in Texas (1992) and has maintained certification ever since.



Guy teaching a tree climbing class to municipal tree workers

Professional tree worker training for:

  • City of Austin
  • International Society of Arboriculture, TX chapter
  • Texas Forest Service
  • Houston Area Urban Forestry Council
  • Cross Timbers Urban Forestry Council (DFW area)
  • City of Round Rock
  • Williamson County, Texas

Guest instructor:

  • Texas A&M University
  • Mira Costa College, San Diego
  • Southwestern University, Georgetown

General public tree care talks and instruction for:

  • Lady Bird Johnson Wildflower Center
  • TreeFolks, Austin
  • City of Austin Zilker Botanical Gardens Center
  • Central Texas Arborist Association
  • Travis County Master Gardener’ program

Author, articles for:

  • International Journal of Arboriculture
  • In the Shade, a publication of Texas ISA
  • Southwest Trees and Turf
  • Austin American Statesman

Television and radio:

  • KLRU’s Central Texas Gardener appearances
  • KLBJ AM, guest on John Dromgoole’s and Sheryl McLaughlin’s gardening programs

Tree Care Related Activities:

    • Co-developer of Oak Wilt Prevention Pruning guidelines with TX I.S.A., TXForest Service and TX AgriLife Extension Service (2012)
    • International Tree Climbing Championship event head judge (2002-06)
    • Arboricultural advisor, City of Austin Heat Island Task Force (2001)
    • Member, board of directors, International Society of Arboriculture, Texas Chapter (1995-98)
    • Chairman and member, City of Austin Urban Forestry Board (1990-97)
    • Coauthor of Austin Public Tree Care Ordinance, adopted in 1997
    • Past president, Central Texas Arborist Association

Guy at work in a freeze-damaged palm


Call 301-8700 (austin area code)