Blue Spire' is an erect small deciduous shrub to 1.2m, with white stems bearing deeply-divided, aromatic greyish leaves. Small violet-blue flowers in large plumy panicles in late summer and autumn Growing Details: Common Name: Perovskia Blue Spire Genus: Perovskia Species: atriplicifolia Skill Level: Beginner Exposure: Full sun Hardiness: Hardy Soil type: Chalk, Sand, Loam Height: 150cm Spread: 100cm Flowering period: Late summer Description: Perovskia are deciduous subshrubs with aromatic, deeply divided, grey-green leaves and large, open panicles of small tubular blue flowers from late summer