Frantz, when you are gathering seed, let me know. It will probably be some time before seed set to gather, but that is a gracious offer, and yes, I am in, thank you for thinking of me.
Ann, quite often (and you, as a gardener more than likely are fully aware of what I am going to say), if there is lush foliage on a plant and few flowers, the plant requires nourishment in the way of phosphorus. You know, the middle number in the three ratio numbers, hee, hee. I would feed that plant some 15-30-15 or something similar, high phosphorus is good sometimes, sometimes it is not so. Judgement call for surely. Plants mostly love a higher phosphorus feeding when they are set in the ground as seedlings and then later when they are trying to produce flowers. Give it a whirl, or thoughts.....beautiful and most wonderful day in this gorgeous life we live. Cindi