Buy the 2015 Old Farmer's Almanac!
It's a good practice to pinchIt's a good practice to pinch (or prune) the center growth stalk. This will allow more laterals (side shoots) to grow and you'll get more flowers. For bigger blooms remove more stems and only keep three to five flowering stems per plant; for smaller blooms keep seven to ten stems.  

Shop Wind Bells in the Almanac General Store