Plant Selection Choose your tree or shrub based on your landscape needs, like flowering, evergreen, screening, hedge, shade or border. Be sure to consider the ultimate size of each plant – which tends to be different in Oklahoma than what you’ll read on a generic label. Speak with a TLC Expert for guidance in selecting the proper tree for your location. Call OKIE Call OKIE at 811 to have your utility lines marked before planting. This service is free of charge, but takes 48 h