Lavandula x intermedia 'Lullingstone Castle' ( lavandin 'Lullingstone Castle')

This is a very large plant, with dense gray foliage. The flower stems are very long, as are the flower spikes. Nice for hedging or as a large accent plant. The calyx color is violet green; the corolla is violet. 
 

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