Great for containers or borders! 'Ostfriesland' is a perennial cultivar with upright racemes of violet- purple flowers through the summer above narrow, rough, grey-green leaves. May need winter protection, plant in full sun.
 
Appearing on airy (and increasingly lengthy) spikes throughout the summer, the flowers of this sun-loving sage are a deep & pretty purple. A cottage garden classic, it will usually flower for months on end!