one nice plant

More of my balcony plants are showing disease; to my dismay this includes both pots of mint. Most of the nicotiana are tall and leggy, leaning through the railings. Two have different, darker foliage with a hint of blue in the broad leaves,

 also with stouter proportions. They've taken longer to flower as well. This one is white.

I moved it over to the brick wall for a better picture. If all the nicotiana plants looked like this, I'd be pleased. Maybe I should try and save its seed for next year, although I prefer colored flowers. I don't know if its genetics or growing conditions that gave it a different look.