How do I prune Perovskia?

Wait until after the last frost in spring before pruning Perovskia, then cut back hard to basal shoots about 6 inches above the ground, always cutting just above pale green buds. New growth emerging on low, woody stems encourages a denser habit.

See full answer to your question here. Furthermore, how do you prune Russian sage?

Follow these steps to prune Russian Sage while dormant:

  1. Cut back all growth from the past season to healthy buds, within 6-8 inches from the soil.
  2. Remove any dead branches as well as broken or damaged wood.
  3. Remove any skinny twigs incapable of supporting strong new branches next season.

One may also ask, how do you care for Perovskia? Caring for perovskia Plant it in light garden soil, even rocky soil, with a lot of chalk. Salt won't disturb it in any way, so it is great along coastal areas. If your soil is heavy, mix coarse sand to the original garden soil when planting. You can also add lime to break up clay.

Also asked, does Russian sage need to be pruned?

In areas with mild winters, tackle pruning Russian sage after flowers fade and when winter settles in. You can give plants a hard prune at this point, cutting plants to 6 to 12 inches tall, if you don't want to see stems all winter long. Otherwise, wait to do a hard prune in late winter or very early spring.

How far do you cut back Russian sage?

Cut your Russian sage back to about 4 inches above the ground. If your plants tend to flop during the summer you can cut them a second time. Prune the plants back halfway once they reach 12 inches.