This cultivar of unidentified parentage was originated by
Carl Mack and
registered on his behalf by
Peter and Jean Ruh of Ohio in 2002. It is a large size plant which grows about 19
inches high with a spread of around 38 inches. The
leaves are green, have a heart shaped base and are
slightly rippled. In July, it bears pale lavender
flowers that do not set seeds.
'Fox Lake' may have been
sold as 'Mackwoods No. 18'.