Peter Ham NJ Watershed Institute Green Infrastructure Certification Specialties Photos conservation landscaping About Peter Ham Ham Landscape Gardens LLC 140 Quaker Road Princeton, New Jersey 08540 609 480 8389 peter@hamlandscapegardens.com Summary of Services Do you work with homeowners?: Yes Certification Number: A-00017 Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API.