Polemonium reptans 'Stairway to Heaven' features cream edged, heat tolerant leaves that develop a stunning pink tinge when grown in full sun. Beautiful light blue flowers are borne in April in May, held on stems above clusters of dainty variegated foliage. Jacob's Ladder is an eye-catching, cottage garden hardy perennial that is a pleasant companion for Hostas in shady positions and requires minimal maintenance. Height: 40cm (16). Spread: 45cm (18).