New perennial rudbeckia for borders finally plant breeders have achieved the almost impossible 45 crossing annual rudbeckias with perennial echinaceas33 the result tough hardy plants with the stronger and longer flowering habit of annual rudbeckias that come back year after year a collection of three autumnal colour shades and seemingly endless blooms our summerina collection is ideal for extending the colour in your borders and container displays right into autumn supplied in three