Sedum

This is an old-fashioned perennial forming blue-green rosettes of succulent foliage throughout summer. Towards mid-summer, flat tightly-packed heads of green buds form, opening later in the year to reveal masses of tiny bright pink flowers. Sedum is highly attractive to butterflies and insects, and several species can be found crowding over the flowers, making an additional attraction in the autumn garden. This plant has been given the prestigious Award of Garden Merit from the RHS.