Ilex Nellie Stevens Full Standard 180cm Stem, Girth 8/10 : Ilex aquifolium Nellie Stevens, known as Nellie Stevens Holly. Originally from America but now grown all over Europe, Nellie Stevens is a female Holly and is actually a cross breed between Ilex Aquifolium and Ilex Cornuta, leaves are glossy green year round autumn and winter masses of red/orange berries are present, great for birds at that time of year.