So, maybe you won't retire on the profits of this one, but it's one of my favorite container plants, and I'm always snipping off of it for design work. The inconspicuous flowers turn into little red and pink berry-like fruits on dainty but tough stems. They can get more than 2' tall, and offer an airy texture quite unlike any other commercial cut crop. For the right market these may be an unexpected seller. They have a tendency to reseed a bit, even within the same season.
Gro n Sell offers these in their catalog, so I am also offering them to you.