Lathyrus can be annuals or herbaceous or evergreen perennials, mostly climbing, with pinnate leaves ending in a tendril, and showy pea-like flowers, fragrant in some species
'Cathy' is a vigorous annual climber to 2m, with grey-green foliage and long-stalked racemes of up to four fragrant flowers 4.5cm wide, with ruffled creamy-white petals, opening from summer to early autumn