Posted Sign with Poison Ivy

Posted Sign with Poison Ivy

Why is it SO common to see poison ivy growing on the No Trespassing signs along country roads? Because roadsides are perfect poison ivy habitat. Poison ivy grows in the deep woods, but it prefers places with more light; roadsides have tons of light. And birds often sit on wires along roadsides and drop poison ivy seeds there. So roadsides are almost habitat number one for poison ivy and those nice, thick trees that are perfect for postings signs are also perfect for poison ivy to climb upon.