Salvia 'Indigo Spires' is a vigorous, bushy perennial hybrid well known for long, twisting spikes of deep violet flowers.
Produces spectacular, tall spikes (up to 30cm long) of small, tubular, indigo-purple flowers with velvety texture and is  a prolific bloomer from late spring through autumn.
Features slightly aromatic, ovate, mid-to-dark green leaves.
Grows around  1–1.5 metres tall and about 1 metre wide.