This one is deliciously edible & has a droplet of nectar in every flower.

Tropaeolum, commonly known as nasturtium or nasturtian , is a genus of roughly 80 species of annual and perennial herbaceous flowering plants. It was named by Carl Linnaeus in his book Species Plantarum, and is the only genus in the family Tropaeolaceae.
https://en.m.wikipedia.org/wiki/Tropaeolum