I haven't planted cosmos in several years. I planted the dwarf variety 3
years ago, and have just enjoyed the chance reseeding (the dwarf variety
seems to reseed a bit less prolifically than the taller varieties). This
year, I have many plants of various sizes, from 6 inches to about 2 feet
tall, all of which have been blooming for the past month or more - however,
I have one plant which has a huge healthy central stalk, numerous strong
healthy branches, and not only no flowers, but not a single flower bud. It
is about 2 1/2 feet tall by now, less than a foot from other cosmos which
have been blooming for weeks. I would say that the central stalk on the
non-blooming cosmos is nearing 2 inches in diameter, and is practically
becoming woody. Since we sometimes have a killing frost in mid-September,
I'm starting to think that I won't see a single flower off that plant. Has
anyone else had that kind of a cosmos experience?