As salvias originate from many regions around the world, different species are suited to different conditions. Most love full sun or semi-shade, and some tolerate cold temperatures and frost. They come in a range of appealing flower colours, including blue, mauve, cerise, pink, red, white and orange. Salvias are generally easy to cultivate, growing quickly and flowering readily, so there’s not much waiting around for the performance to begin. Their flowers are a good source of bird-attracting nectar. Plants grow 18 inches to 5 feet tall, depending on the variety.