Bending solid wood is something you do while it grows. See for example https://fullgrown.co.uk/ https://fullgrown.co.uk/, https://en.wikipedia.org/wiki/Espalier

Bending solid wood is something you do while it grows. See for example https://fullgrown.co.uk/ https://fullgrown.co.uk/, https://en.wikipedia.org/wiki/Espalier https://en.wikipedia.org/wiki/Espalier or https://www.core77.com/posts/27263/Polands-Forgotten-Crooked-Forest-What-Were-They-Going-to-Build-With-These-Strange-Trees https://www.core77.com/posts/27263/Polands-Forgotten-Crooked...