Lavandula x intermedia Phenomenal

Lavandula x intermedia, known as Dutch Lavender and Lavandin, is a cross between Lavandula angustifolia, called Old English Lavender, and Lavandula latifolia, Portuguese Lavender. The plants are bigger and easier to harvest with a sharper overtone in the fragrance.
Lavender flourishes in dry, well drained sandy or gravelly alkaline soils in full sun. High humidity and constantly wet soil in summer and winter will contribute to root rot. 
USDA zones 4 to 8.
Height: 2.5ft
Impressively fragrant long lavender purple flower spikes on vigorous healthy uniform mounds of silver foliage. Bred to be tolerant to more humidity and heat. Notable size and hardiness.