Is switchgrass invasive?
While switchgrass is a fierce competitor within the stand, it is not invasive in nature. This is due mainly to its fragile establishment phase. There are literally hundreds of other species capable of choking out switchgrass seedlings should they manage to germinate unintentionally. The only place we have witnessed unintentional switchgrass establishment is under guardrails along some roads. The reason for this is because road departments usually spray under the guardrails to keep vegetation from encompassing them. This gives switchgrass the opportunity to establish (as covered above).
