It is a branching, tuberous tender perennial with dark purple, almost black, foliage.

[1] The plant was first bred by Fred Treseder, a Cardiff nurseryman.

[2] It was selected by and named to honour Joshua Pritchard Hughes, Bishop of Llandaff, in 1924 and won the RHS Award of Garden Merit in 1928.

[3] The simpler form (single or semi-double)[1][3] of the flower makes the nectar and pollen more accessible to pollinating insects.

Plant Profile: Also comes in rich reds and purples, yellows and oranges, as well as paler shades