is owned by Larry and Mary Costello. Larry has worked in the green industry in California for over 33 years. After a 30-year career with the University of California, he retired Emeritus in 2011 and started the nursery. While with UC, he conducted a research and education program focused on tree management practices and co-authored Oaks in the Urban Landscape: Selection, Care and Preservation (2011). He is a member of the International Society of Arboriculture (Western Chapter) and the San Francisco Urban Forestry Council.
Assisting in nursery operations and administration are Rose, Colleen, Thomas and Michaela Costello.
Nursery Operations are managed by Mike Costello.