From late spring, right through to early autumn, whorls of hooded, pale yellow flowers appear at intervals on tall, erect stems with dramatic, heart-shaped leaves with a woolly white coating beneath. A vigorous, spreading perennial that's justifiably popular, due to its long flowering season and tolerance of drought. Phlomis russeliana looks great in a mixed border, but it needs room to express itself. The flowers are also worth leaving on in winter as they look magical when covered in frost. Can grow to 90cm in height, with large, ovate, rough-textured grey to mid-green leaves, with a woolly white coating beneath. Stout stems bear whorls of hooded, soft yellow flowers 3cm in length from late spring to autumn.