Was just commenting tonight that they have flowered for weeks but have deadheaded freequently to be honest! A couple of them I planted too deep initially and that certainly was bad news! Have yours been in all winter @jpgarden?
Thats a pitty @jpgarden, these are in moderately drained soil but need to not get compacted otherwise mine were rotting. Sorry not sure what else to suggest, it's a bit trial and error with me to be honest!