A trusted arborist
Stef Ringgenberg founded Boulder Tree & Landscape Company in 1972. For 32 years he treated trees for customers in the Boulder Area until the company was sold. Boulder Tree was a full service tree service that did pruning, insect and disease control, fertilization, and anything else related to the care of trees.
(The photo below shows the company before it was sold)
During those years, Stef became a recognized expert on the care of trees. He was on the Board of Directors of the International Society of Arboriculture and is designated a Certified Arborist by that organization. Stef was also a Registered Member of the American Society of Consulting Arborists for many years.
Boulder Tree & Landscape Consulting no longer does the physical work but now gives advice on tree care. Stef is a tree doctor who can diagnose what’s wrong with your sick trees, but a better idea is to call Stef before the trees get sick. He can give you a plan to keep your trees healthy!