A brilliant species producing 3in long tubular vivid red flowers from early spring until well into summer. The foliage is not evergreen (contrary to the specific epithet) but is a rich soft purple when it first emerges, and the top-most pair form a dish around the flowers.
Fully hardy and easy in a sunny spot on a wide variety of soils. Much better than x brownii, which is usually recommended over sempervirens. Grow it in a Pyracantha and make an ersatz Embothrium!