Phenomenal tolerates the extremes of both cold and heat without dying back, is resistant to common root and foliar diseases, and grows wonderfully in landscapes. This is a very large, hedging lavender that can be used to create a border around the garden and also can be grown as a cut and dried flower for potpourri and culinary uses. It forms a very uniform, dense mound of silvery green foliage topped with tall wands of rich lavender purple flowers which are much darker than 'Provence'.