tapping trees, sugaring house, syrup grades

Advancing Vermont's maple industry since 1946

The Proctor Maple Research Center is a field research station of the Plant Biology Department at the University of Vermont.

The sugar maple tree (Acer saccharum) has roots in everything we do. We strive to contribute to the practical and scholarly knowledge required for the success of the maple industry, through research, demonstration, and education.

Our applied research has produced new techniques for sap collection and evaporation and for improving syrup quality, while basic research has shed light on the physiology and health of sugar maple trees and the chemistry of sap and syrup. We also serve as a field classroom for students, scientists in many disciplines, and maple syrup producers, offering presentations and tours. Learn more about our research and facilities.

We have two major stands of sugarwoods and a modern sugarhouse that support our demo sugaring operation. Each year, we put out about 5,000 taps to produce about 3,000 gallons of maple syrup.

  • Perkins stands next to new evaporator, surrounded by equipment

    Proctor's Latest Innovation? Weekends Off.

    Proctor doubled its syrup productivity in 2018. Read about how the new Lapierre HyperBrix evaporator, pictured here next to Director Tim Perkins, helped accomplish the feat.



    Photo by Mark Isselhardt

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a plastic tap and tube in a maple tree


Check out our YouTube channel for videos on maple tree research and maple syrup production.


Tune in to Vermont Maple Minute, a podcast hosted by UVM Extension maple specialist Mark Isselhardt.


58 Harvey Road
Underhill, VT 05489

(802) 899-9926 research
(802) 899-4923 sugaring


Monday–Friday, 8am–4pm, by appointment only.

Unfortunately we are too busy to schedule visits during sugaring
season, late February to mid April.