Mentioned in the Bible for purification. Leaves have a bitter minty-sage flavour go well in salads, add the flowers as well for splash of colour! Loved by bees and butterflies.
Type: Hardy Perennial
Height: 80cm 
Spread: 80cm
Soil type: Well drained 
Aspect: Full sun 
Flower colour: Blue/Purple   
Flowering time: Summer into autumn