Perovskia 'Blue Spire' (Russian Sage)
- Usually Flowers : August, September
Rosettes of deeply cut, greyish-white foliage with a sage aroma and large panicles of violet-blue flowers. August to september. Ht.1.2mt.(4ft.). Deciduous sub shrub. Grow in sun and well-drained soil. Cut back hard in spring. Good for mixed borders.