Big Bluestem

Roots may reach depths of 2 to 4 feet at the end of establishment year. Roots of well
established plants may reach depths of 7 to 8 feet. Roots can be long lived, one test
indicated 81% of big bluestem roots lived for three years (Weaver 1968). According to
Walter et al. (1996), root and rhizosphere overlap among neighboring plants can transfer
P among species including big bluestem.