The tallest hollyhock is 7.4 m (24 ft 2 in) and was grown by Meir Baruchi (Israel) in Nahariya, Israel, as verified on 13 August 2021.
https://www.guinnessworldrecords.com/world-records/72269-tallest-hollyhock

拙立葵はというと：

3.2m tall and counting!!!　放射状に地べたを這う葉と茎が冬を越したと思えば中央から次第に茎らしきもの垂直に伸び始め、50cmほどで蕾をつけ･･･Long story short, here it is.
梅雨空に　屋根へと向かへ　立葵