Mission Statement

Tree New Mexico is dedicated to helping communities plant and care for trees in urban areas — large and small — throughout The Land of Enchantment.

Welcome to Tree New Mexico

Organizational History and Goal

For over 30 years Tree New Mexico (TNM) has been planting trees in the Land of Enchantment and educating the public on the value and necessity of healthy urban forests. We continue to be the premier private, non-profit tree planting organization in NM (and the nation); planting thousands of trees each year and building a high level of understanding and advocacy for the expansion and maintenance of urban forests.

Tree New Mexico was initially formed out of concern for the environment by local high school students on the premise that tree planting is an important and worthwhile national and community goal. Since our founding in 1990, our partners and volunteers have helped plant over 1,250,000 trees in communities throughout New Mexico. Founding Director, Sue Probart, ran TNM for the better part of 30 years. She was generally known in NM as “Ms. Tree” and was an instigator of urban forestry initiatives throughout the state.


Our Objectives:

  • Increase the canopy of urban and community forests throughout New Mexico.
  • Build public awareness regarding trees and the environmental role they play in our communities and the nation.
  • Provide environmental tree-based education for citizens of all ages.
  • Mitigate and reverse urban heat island effect in urban areas of the state.
  • Serve as an urban and community forestry advocate.
  • Build strong and effective partnerships with all levels of public and private organizations.

Tree New Mexico
Board of Directors

(Click on pictures for board member bios.)

Jim Maddox

James A. Maddox


Jim has been active with Tree New Mexico and a member of the Board of Directors since 1993.

Gary Benton

Gary Benton


Gary retired as a process engineer in June 2016, after a 20-year career at the Intel Corporation.

Laura Rummler

Laura W. Rummler

Member of the Board

Laura brings expertise in nonprofits and business management to Tree NM.


Janus Herrera

Member of the Board

In 2019, Janus began planting with TreeNM and has since enjoyed the Tree Stewards program, deliverin...

Tree New Mexico Staff

(Click on pictures for staff bios.)


Shannon Horst

Executive Director


Tamar Randall

Development Director

Kelly White

Kelly White

Education Director

Erika Robers

Erika Robers

Assistant Director of Education

beth in climbing gear

Beth Forman

Statewide NeighborWoods Director


Ray Hendrix

Greater ABQ NeighborWoods Director


Luis Santiago

Planting Event Coordinator


Mackenzie Wieder

Planting Event Coordinator

Micelio with a goat

Micelio Loera-Ramirez

Planting Event Coordinator

erin on a mountain top

Erin Berkowitz

Planting Event Coordinator


Maureen Poulas

Program Coordinator

Sue Probart - Founder

Founder (January 29, 1949 – January 9, 2023) Suzanne was the founding director of Tree New Mexico. She guided Tree New Mexico into a nationally recognized and commended environmental tree planting and education organization. For many years she served on the New Mexico Tree Planting Advisory Committee, and the New Mexico Urban Forest Council. During its formative years, Suzanne also helped Navajo agencies and government officials establish Navajo Nation Arbor Day and assisted communities around the state in earning their Tree City USA designations


TreeNM does not discriminate on the basis of race, color, national origin, sex, religious creed, age, political beliefs, disability, or reprisal or retaliation for prior civil rights activity in its program or activities. Shannon Horst is the designated civil rights coordinator.


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