Salvia x superba 'Adora Blue'
This is a new one for me….makes a dense clump of green leaves and sends up multiple well-branched flower spikes, each packed with generous amounts of deep violet-blue flowers. A good choice for the front of a hot border or in pots, flowering for around 4 months over summer if the spent flower spikes are kept trimmed off. Full sun and good drainage. H 35-45cm x 30cm W. 12cm pot.