Lavandula x intermedia 'Seal' (lavandin 'Seal')

This is another very tall lavandin cultivar with very silvery foliage. Very much a standout in the garden. The spikes are lightly colored and not so useful for dried flowers. The calyx color is light violet green; the corolla is violet. 
 

evergreen shrub
height x width  3 x 3’
USDA Zones  5-9