A very floriferous passion flower, Passiflora ‘Betty Myles Young’ is a large, vigorous, semi-evergreen climber with twining tendrils. Reminiscent of Passiflora caerulea, the large, slightly reflexed, purple flowers, 3-4 in. across (7-10 cm), feature a ring of dark blue, pointed filaments surrounding the green fleshy reproductive structures.