Renovation of an apartment after using various types of grass

It's specifically about these scent residues. I'm not sure if I can manage them with simple painting and wallpapering.

What does the landlord say about that? You can try to reduce the rent.
On the topic: Plant smell doesn't chemically interact with plaster or paint...
Step 1: I think simple painting is enough.
Step 2: There is a primer for nicotine, but that is actually priced for a landlord or owner...