I speak from observation rather than experience. From what I've observed, I think Russian sage does much better with good drainage, dry soil & full sun. My own plants have tended to flop in part sun with rich, organic sandy soil.

Larry Hodgson's book 'Perennials for Every Purpose' says they want full sun & poor soil that's pretty dry.

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This post was edited by GreatPlains1 on Wed, Sep 4, 13 at 3:56

I almost bought a 'Little Spires' yesterday. I'm thinking about taking out my Perovskia after 15 years in the same bed because it is flopping & driving me crazy. Especially this year, since we've had a lot of rain. But regardless, I do have other things in the bed that need water and I do have clay soil. I heard that 'Little Spires' remains upright, so if anyone has that variety, how is it doing?

I bought 'Little Spires' this past spring and so far it is completely upright. I like it - lots. Seems very sturdy. I'm not so sure about the ultimate height however. I think it's advertized at 2 feet, but I'm sure mine is taller which makes me wonder what it will do in year 2 and after.

Kevin