In 1976, Tom Prosser began treating elms in his Twin Cities neighborhood for Dutch elm disease.
His commitment to science-driven tree care led to the creation of Rainbow Treecare, a leader in plant healthcare services. Recognizing the need for research-backed solutions, we established Rainbow Treecare Scientific Advancements in 1996 as our research and development division. Our goal was to develop plant healthcare protocols that were predictable, scientifically proven, and empowered professionals to protect more trees and enhance the health of woody ornamentals for their customers.
As our expertise and impact expanded beyond tree care into the broader green industry, we evolved into Rainbow Ecoscience in 2021. This transformation reflects our dedication to supporting arborists, landscapers, municipalities, and other green industry professionals with innovative, science-based solutions for plant healthcare and landscape enhancement.
Today, Rainbow Ecoscience continues to lead the industry with groundbreaking research, conducting over 150 independent and university-backed trials annually. We provide ongoing education and training to help companies grow their plant healthcare programs, stay informed on the latest industry challenges and solutions, and implement new strategies for predictable, profitable results. Our mission remains steadfast: to protect and preserve the urban ecosystem through science, research, and education—ensuring a healthier, greener future.
