Regional Plant Appraisal Committee and Guides

Committee Members

Jeff Ling

Chair

RCA #337
Arborwise
PO Box 6553
Fort Wayne, IN 46896
260-402-6016

Lindsey Purcell

Co-chair

RCA #673
BCMA
Urban Forestry Specialist
Purdue University
Department of Forestry and Natural Resources
Office | 765-494-3625

Jud Scott

RCA # 392
Vine and Branch
4721 E. 146th St.
Carmel, IN 46033
317-846-3778

Rich Blankenship

Mark H. Holeman Landscape Architects and Contractors
7871 Hague Road
Indianapolis, IN 46256
317-849-3120

David Gorden

Mark H. Holeman Landscape Architects and Contractors
7871 Hague Road
Indianapolis, IN 46256
317-849-3120

Andrew Mertz

RCA # 542
Indigo Tree Consulting
317-508-4909

Kyle Daniel

Nursery and Landscape Industry Representative
Nursery and Landscape Outreach Specialist
Department of Horticulture and Landscape Architecture
Purdue University
daniel38@purdue.edu
Phone: 765-494-7621

Expires- 1/2022

Assignment: The 10th edition of the Guide for Plant Appraisal encourages the formation of a Regional Plant Appraisal Committee to maintain and update regional information providing accurate data to facilitate the use of the Guide. The assignment for the committee included:

  • Identify the largest commonly available (wholesale) nursery-grown tree. Which was done through state-wide surveys, compiled and analyzed. Nurseries which responded indicated 3 1/2 “ is the most commonly available nursery grown tree and 10’ is the most commonly available nursery grown conifer.
  • Determine regional cost information relative to wholesale price of the largest commonly available nursery-grown tree and the costs for shipping, install and maintenance for that tree for one year. Unit cost for application in the Trunk Formula Technique (TFT) would be $37.71 in Indiana.
  • Define species ratings for common Indiana trees to facilitate the application of depreciation ratings.

This information will be updated as needed by the committee as needed or indicated by the Council on Landscape and Tree Appraisal. The Indiana Arborist Association would like to thank the committee for their time and effort assisting industry professionals.

Indiana Guide for Rating for Landscape Trees — This list contains a sample of plants in the landscape that grow in Indiana, including native and non-native selections. A single rating has been supplied for the state and may vary based on location within the state. This is not meant to be inclusive but, rather, representative of the majority of species found commonly in the urban forest. The ratings represent comparative values for species found in Indiana with consideration given to climate adaptability, growth characteristics, site adaptability, tolerance to biotic and abiotic challenges.

Conditional Statement

It is the opinion of the IN RPAC that the 10th edition of the Guide for Plant Appraisal is the authority for plant appraisal and we recommend referring to the guide when conducting professional consulting services. This product is a baseline for species based on common limitations. It is incumbent upon the consulting arborist to determine the appropriate rating for each species.