Answer: Russian Sage, or Perovskia 'Blue Spire,' is a woody, multi-stemmed plant that grows to 3' tall. The spikelike clusters of flowers that form above the foliage can be cut down when they're old and spent. In fact, if you cut the flowering stems down now, your plant may produce a second flush of bloom. General pinching and pruning of the foliage isn't really necessary at this time of year. The top of the plant will go dormant in the winter and you can prune it back then to keep the plants bushy and compact.
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