Cofrin Memorial Arboretum
The Cofrin Memorial Arboretum 290 acres surrounds the University of Wisconsin–Green Bay campus in Green Bay, Wisconsin, United States. Its six miles of trails are open to the public.
Today's Arboretum began in 1971, when a long-range campus plan was drawn up, recommending the creation of a park-like arboretum and trail system. In 1975, a major contribution in honor of John and Austin Cofrin enabled development of the trails, additional property, and improvements in the botanical plantings. At present the Arboretum contains the following areas:
; Keith White Prairie : 8.5 acres maintained through prescribed burns. Grasses include big bluestem, Indian grass, and switch grass. Flower species include yellow cone flower, prairie dock, lupin, black-eyed Susan, spiderwort, and false indigo.
; Mahon Woods : a remnant of the indigenous forests, with 59 species of trees and shrubs including oaks, sugar maple, and white pines. Other species include trillium, trout lilies, violets, and toothworts.
; Niagara Escarpment : white cedar trees.
; Northern Barrens : An artificially developed sandy habitat for plant species that cannot flourish in the clay soils of the campus.
; Oak Savanna : scattered oak trees within fields of grasses and herbs.
; Paul Sager Tract : 20 acres including small natural springs, 2 ponds, and associated wetlands.
; Succession Plots : 13 experimental plots ranging in age from 2 to 17 years of natural succession. At present, its plants include, in rough order of succession: lamb's quarters, ragweed, foxtail grass, bluegrass, quackgrass, smooth brome, goldenrods asters, box elder, cottonwood, quaking aspen, sugar maple, American beech, eastern hemlock and yellow birch.
