FCA Warren Stamping Plant

Warren, Michigan, United States

Certified through 2022

Project Name
Project Type
Pollination Station
About the Program
The FCA US Warren Stamping Plant is a Chrysler automobile factory in Warren, Michigan about 6 miles west of Lake St. Clair and 10 miles north of Detroit. The factory was completed in 1948 and began production in 1949. A 174-square-foot pollinator garden targeting bumblebees and monarch butterflies was developed in 2017 in a location where only soil, sporadic weeds and mulch had existed before. The conservation objective is to support biodiversity by incorporating native plant species that serve as food and shelter for monarch butterflies, bumblebees and beetles. The team aims to introduce these species and maintain them through monitoring, with plans to explore long-term expansion.

Practices and Impacts
  • During the first fall frost of 2017, the team planted milkweed seeds and transferred bee balm plants. The following June, more milkweed was added, along with coneflower and black-eyed Susan.
  • A variety of plants with different blooming times were added to address different species’ needs. These plants serve as nectar and pollen sources, larval host plants and shelter. Rock piles are placed along with wood structures to serve as basking areas, and to provide beetles with shelter. Water is added to shallow, potted fixtures to provide a drinking source and support reproduction. 
  • The team arranged the larger plants in the middle of the garden, while the smaller plants were placed on the exterior. The width specifications for each plant were also considered to allow for proper distance between plants.
  • The team learned what to observe in the pollination station. Signage at the station lists plant types and types of pollinators that may be observed. The team inspects the plants for any damage from insects. The Team documents findings in a spreadsheet.
  • The team observed their first monarch butterfly and bumblebee in June of 2018. In July of 2018, bumblebees, monarch caterpillars and damaged plant leaves were observed. Several chrysalises were also observed in July of 2018. In August 2018, more monarch caterpillars and butterflies were observed in the station. Several bumblebees and yellowjackets were also noted that month. In 2019, bumblebees, monarchs and chrysalises were observed throughout the summer months.