A salvia called Golden Delicious (Saliva elegans) has great lime green foliage and brilliant red flowers, just what you need to perk up that dark corner of the garden. One more caveat…brush the foliage and it smells like pineapple! It is a hybrid of the Saliva elegans, Pineapple Sage. It loves full sun but will tolerate some shade. It will stay around 3’ x 3’, likes a little more water than most salvias but will tolerate some drought once it is established.