Pink Lemonade. Klehm, Carl G. 1951. Lactiflora. Parentage: not recorded. A lovely pink and yellow double bomb form. Globular flower with shell pink guard petals and yellow and pink center. Exquisite color combination and a desirable garden plant. Vigorous and upright form with healthy dark green foliage, blooming mid-season, with a plant height of 36″.