It's a fast-growing plant that gets about 30" tall and will spread pretty wide if you let it. They are easy to prune however and easy to shape. I don't cut them back too much in the fall, but rather wait until late spring to tidy them up.
They develop a woody trunk after a few years and I have had sections of older plants die back over winter, but they keep coming back year after year.
In the early summer heat the flowers are all red, with an occasional white one. But later in the season the flowers will be bicolor red and white and will bloom until frost.
|Here they are at the end of May beginning to become bicolor.|
I have also had excellent results in Portland with many of the Salvia greggii varieties, like 'Maraschino', 'Icing Sugar', 'Flame', 'Lavender', 'Ultra Violet', and 'Wild Thing'.
And I highly suggest Salvia clevelandii. It has the most beautifully fragrant foliage and pretty whorls of lavender-blue blooms. I can smell this plant near my walkway and I have to bend down to smell it EVERY time.