Hi there,

I don't have any intentions of adding a new genre at this time. I think a keyword would be better for this particular classification regardless. We actually have it, there just isn't much data attached to it right now:

https://www.themoviedb.org/keyword/241526/movie

You are more than welcome to find your favourite home and garden shows and mark them with this keyword. It would help other users find the data in the future.

Cheers!