Dennis- Regarding vigor for Lilting Lavender, when I first got it, I put it in a bed I called the Roadside Bed, far from the house. Soon after I became really over-involved in some other activities and while all my beds were neglected, the Roadside Bed most of all. Several years later, trying to salvage plants out there, Lilting Lavender was one that had survived! I think I had 2 small fans to move, and with a little watering and some regular weeding, it really took off, and my 3 large clumps today are all from those 2 fans. Plus I have given some away several times. So yes, it is vigorous! And increases without running rampant...
