Schizophragma hydrangeoides   ‘Moonlight

a vigorous, woody, deciduous climber on aerial roots
~ silvery, blue-green leaves
~ sprays of small, creamy-white flowers surrounded by large, white, sterile florets
~ similar to a lace-cap hydrangea
~ slow growing but will reach >10 ft
~ part shade to dappled sun

Notes:
One of my favourite shrubs I grew in a London garden – it had reached maturity at approx 12 ft so I took a cutting in early 2019 and brought with me. Fortunately it is slow growing so still thriving in a pot