Blooming before most other Lavandin cultivars, Lavandula x intermedia 'Phenomenal' forms a compact, bushy, rounded shrub with aromatic silvery gray-green narrow leaves. In midsummer, long flowering stems are topped by 5 in. (12 cm) spikes of sweet-scented bright violet-blue flowers. Often repeat blooms in late summer or fall. A great choice for the landscape due to its exceptional winter survival: its foliage does not have the winter dieback commonly seen in other hardy lavenders.