The St. Johnsbury town forest is a mixed northern hardwood forest.
In the low elevations there is  northern white cedar, black ash, and hemlock. In the upper elevations there is white pine and black cherry. There is also invasive species in the town forest such as European Buckthorn.
The St. Johnsbury forest consists of 110 acres of land. Before it was the St. Johnsbury town forest 72 acres of it was the Almshouse town farm.
In 1922 the St. Johnsbury Women's  Club planted white pines in the areas where it was no longer farmed.
Over the years 20,000 trees were planted.