Spring is the season of rebirth and renewal in the northwoods. At The Northland Arboretum, the trees begin to bud and an amazing number of wildflowers bloom. A favorite among visitors is the pasque flower or wild crocus. This beautiful low growing wildflower blooms at Easter and can be spotted primarily on sandy, southern slopes, although it blooms along nearly every trail in the arboretum. The emergence of frogs is another spring phenomenon. In Minnesota, the sound of frogs is a familiar, comforting and wonderful thing. In the arboretum, you'll hear spring peepers, chorus frogs, wood frogs and tree frogs. Folks flock from around the country to see the spring bird migration at the arboretum. As many as 73 species have been recorded in early May. Bring your binoculars, grab the bird check list at the gatehouse and have fun. The Native Tree Trail in the arboretum was implemented in 1998 by fourth graders from Riverside Elementary School in Brainerd, MN. On Arbor Day each spring, students plant native trees and monitor previously planted trees along the trail.. The arboretum provides outdoor classroom facilities to many students in the area.