Sweetpotato plant named 'NCORNSP-020BWGWE'

'NCORNSP-020BWGWE' is a compact, non-twining, upright variety producing many short shoots. It is distinguishable from other cultivars by its yellow green heart shaped leaves with dentate to serrate irregular projecting points (i.e. teeth) with a cordate-deltoid base; a compact habit and erect mounding plant architecture. The lime green, toothed leaves of this plant, short internodes, and the plant architecture are what makes 'NCORNSP-020BWGWE' unique amongst the current ornamental sweetpotatoes in the marketplace. 'NCORNSP-020BWGWE' also exhibits very good vigor and is very well branched. In greenhouse and field trials conducted since 2013, 'NCORNSP-020BWGWE' has been shown to be much less vigorous than Ipomoea batatas 'Margarita' and 'Blackie' and is suitable for use as a landscape or containerized plant. The production of flowers by 'NCORNSP-020BWGWE' is sporadic under short day conditions.