Image Credit: BHG Online

“In addition to defining an entry point, an arbor can create a private retreat. Roses ramble over this rustic arbor, creating an enchanting, restful getaway. For added interest, the structure is made of branches with a variety of textures.”

https://www.bhg.com/home-improvement/outdoor/pergola-arbor-trellis/rustic-simple-arbor-ideas/

Granted, these rustic arbors would probably not work in a formal garden, but cottage gardens are not formal. Cottage gardens were first created by peasants who were forced to do the best that they could with what they had.

Image Credit: Chairish

Image Credit: Earthbag

Image Credit: Spry Interior