Tropaeolum can be annuals or perennials, bushy, trailing or climbing by twining stems, with simple or palmately lobed leaves and showy funnel-shaped flowers with five long-clawed petals and often a spur
'Ken Aslet' is a tuberous, climbing herbaceous perennial to 2m, with rounded, 3 to 5-lobed, grey-green leaves and long-spurred, cupped, orange flowers veined with brown within, and with red spurs