Tropicals & Tender Perennials: ID ideas, 1 by krowten

krowten wrote:
Ok, this is the second attempt. I purchased a 1.5 inch purple fruit at a local supermarket last fall and planted some of the seeds. Grew out two vines overwinter and planted this spring. Pics are the first flower. I'm seeking some help to ID and would like to know if cross fertile with incarnata. Is this a normal flower or is there some malformation? The flower apparently had no pollen despite the coloration of the pic. TIA