This cultivar of unidentified parentage was originated by Carl Mack of Illinois and registered on his behalf by Peter and Jean Ruh of Ohio in 2002. It is a giant size plant which grows about 29 inches high with a spread of around 49 inches. The leaves are pale green, ovate, slightly corrugated and are slightly rippled. From July into August, it bears pale purple flowers.

'Lotus Woods' may have been sold as 'Mackwoods No. 30'.