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City of Denver Approved Arborists

Tree care is an art, a science, and a sport. It requires knowledge of pests, diseases, biology, anatomy, knots, safety,...

Denver Digs Trees: Low-canopy, Focus Neighborhoods

The Park People works across Denver to nurture a diverse, vibrant, and verdant urban forest. It’s essential to keep planting...

Tree Planting Guide

A tree is most vulnerable during its first few years after transplant. Support your young tree’s health and survival with...

Caring for Maturing Trees

Urban foresters use the concept of PEGSMOR to understand the needs of a tree over its lifespan. PEGSMOR stands for...

Caring for Newly Planted Trees

A tree is most vulnerable during its first few years after transplant. Support your young tree’s health and survival with...

Tree Spacing Guidelines

Trees need room to grow. Your planting site(s) must meet the following spacing requirements: Medium to Large Trees: minimum thirty-five (35) feet...

It’s In Denver’s Nature

Sustaining Denver’s urban forest takes a city, and we are proud to work alongside the Denver Parks and Recreation. In 2023,...

Pruning Project

Complimentary Neighborhood Tree Pruning The Park People and the Denver Forestry Office are delighted to work in partnership with our...

Be A Smart Ash

The Emerald Ash Borer (EAB) is an invasive beetle that threatens to kill 15% of Denver’s trees – some 330,000...

CASR CheatSheet

One‑page PDF of local conservation and sustainability programs.