Hosta London Bridge develops into a medium-sized mound, reaching a height of 30cm to 40cm and spreading up to 50cm at full maturity. It features distinctive, twisted white leaves bordered by a green margin, presenting an attractive appearance. There are lighter green streaks where the centre and margin colour overlap. Twisted and contorted foliage forms a gnarly looking mound. This variety is derived from Hosta Allegan Fog but lacks the green misting. In July, it produces lavender flowers on scapes that stand 60cm tall. It is slug resistant and sun tolerant.