Rosemary
Rosemary has flowers in the blue shades, although there are some varieties with pink or white flowers. Bees love it and deer are loathe to touch it at all. There is a huge range in size from very low groundcover types to plants that reach six feet.
‘Blue Boy’ is very diminutive, growing only to one by two feet. ‘Tuscan Blue’ is a good choice for the landscape with dark blue flowers and a height of five feet. New introductions appear almost every season. ‘Boule’ (French for bowl) is well behaved at three by three feet and ‘Irene’ is similar in size but sporting very bright blue flowers. Culinary varieties include ‘Savor’ and ‘Barbecue’. Rosemary ‘Huntington Carpet’ is a great ground cover. Another very favorable attribute is the drought tolerance of all rosemary – they can get by on practically no water. They do look their best, however, with some very moderate drip irrigation.