On this winter edition of ID That Tree, Purdue Extension forester Lenny Farlee uses black walnut and eastern cottonwood twigs to show you tips on how to identify native Indiana trees with alternative ...

University of Delaware entomologist Doug Tallamy’s research has identified “keystone” plant species that make ... (Salix): Best farther north. Native Cottonwood (Populus): Best in drier ...

Trimming cottonwood trees at this time protects the tree’s health and ensures it recovers quickly. Tom Tiddens, an ISA-certified arborist and supervisor of plant health care at Chicago Botanic ...