Firefighter, Frederic Mistral, Peter Mayle--own root?
Has anyone tried growing Firefighter, Frederic Mistral or Peter Mayle own root in zones 5-6? I am patient and can wait for the bushes to mature, but not if it means they are weak own root growers doomed for failure in my climate. Any thoughts or advice?
Most online sources for Firefighter sell it as own root, so I am not even sure where to look for an excellent quality grafted specimen.