Once you have Salvia ‘Black and Blue’ in your garden (whether it is winter hardy for you or not) you absolutely cannot be without it. An endless supply of ultramarine blue tubular flowers on dark tinted stems provide a constant display from July to frost. Most importantly, the hummingbirds return to your garden each year looking for it, and you don’t want to disappoint them. Plants are generally in the 3′ x 3′ range by summer’s end.
Hardiness zones: 7-10