Community Profile

Pledge Status

Complete

Pledge Date

Friday, February 7, 2025

Program Year

2025

Achievement

Signatories

2025

Links and Uploads

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Action Item Report

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City of Thornton

Thornton, CO

Jan Kulmann

Mayor

Pledge Summary

Thornton, Colorado, is a City of approximately 140,000 residents in the north Denver metro area, running south to north paralleling the beautiful Colorado Front Range. Thornton Mayor Jan Kulmann is committed to saving the monarch butterfly and other pollinators with the signing of the Mayors’ Monarch Pledge. She looks forward to continuing her engagement with residents in developing additional pollinator habitat throughout the City. To improve Monarch life cycle success, Mayor Kulmann has encouraged intentional maintenance practices designed for the restoration of pollinator habitat. These practices include reduction of pesticide use near milkweed in targeted locations and the innovative Naturally Thornton program, converting turfgrass into sustainable and native grasslands. In addition, Mayor Kulmann actively supports the citizen driven Monarch Fly Way initiative, which links City appropriate breeding habitat into a single unified habitat corridor, characterized by appropriate maintenance and public education.

Community Spotlight

Action Items Committed for 2025

Communications and Convening

  • Engage with city parks and recreation, public works, sustainability, and other relevant staff to identify opportunities to revise and maintain mowing programs and milkweed / native nectar plant planting programs.

Program and Demonstration Gardens

  • Display educational signage at monarch gardens and pollinator habitat.

Systems Change

  • Reduce or eliminate the use of herbicides, pesticides, or other chemicals that are harmful to monarchs and pollinators and urban wildlife.