Perovskia atriplicifolia 'Filigran'
Spikes of rich velvet violet blue flowers on silver stems and finely cut aromatic foliage from July through October. This form flowers longer and has a more upright form than other varieties, combining well with a variety of other border plant . The stems provide good winter interest, a good cut flower, pollinator and butterfly friendly, deer and rabbit resistant. Hardy it grows to an ultimate height of 150cm and spread of 90cm.