Co-authors: 5.

Apr 15, These salvias, S. nemerosa especially, flower in late spring to early summer at which point the flowers start fading as the rest of your garden is taking off.

Trim off damaged flowers and branches in fall.

It’s at this time you can act brutally in summer and cut the entire plant back down to the lowest stumphaul.bars: Aug 26, Pruning a salvia bush you prune your salvia you will be cutting out the center stalk that is done blooming. On each side of the center stalk you will see two other stalks with new buds and blooms forming.

If there are blooms done on the two side stalks you can cut those out as well. Only cut the spent stalks and the new flowers will stumphaul.barted Reading Time: 5 mins.

Feb 27, You should refresh prune your Salvia, at the very least, every other year for best performance and long term health. You can prune this hard every year without harming the plant. DON'T FORGET to fertilize after you prune with slow release, multi purpose stumphaul.barted Reading Time: 1 min.