h. 'Licorice Twist' is not sterile and pollen crosses to diploids. Have set pods on h. 'Rainbow Radiance', h. 'Dimpled Dynamite' and a diploid seedling out of h. 'Butterscotch Ruffles' Most were crossed in 2016 and not all have bloomed yet.
The picture is S18-120 Seedling x h. 'Licorice Twist'
