|Hi...I've been told to|
|What you have read is true; deadheading, or removing spent flowers, will stop seed production and the plant will then have more energy to produce more flowers. This is true for most perennials, however some will have only a single flush of blooms each year so deadheading is more of a way to keep the plant looking neat and attractive than it is to encourage additional blooms. I'd prune off any dead flowers and dead stems and branches, too.|
Enjoy your garden!