I want to make a piece that mixes a drawing on paper, with a flower collage (or flat bouquet?) on top and put it in a frame. I know dried flowers don't last forever, but what is their post-dried life expectancy? Is there a way to make them last longer for display? I would ideally like to use real flowers, but if they only last a couple years I will have to use fake flowers.
A few sources I found on the internet say to spray them with hairspray (cheap option), or get them professionally dried and preserved (expensive option) like you would do for your wedding bouquet. I don't want to spend a lot of money ( more than 30$ or 40$).
The piece will be behind glass like a shadow box. I don't want them to decay. They will not be open to be touched, but I don't want them to crumble, loose colour or generally disintegrate. I want the piece to remain aesthetically pleasing.
I ended up using folded paper flowers for the project and it turned out quite lovely. Thank you everyone for your feedback, but the dried flowers were not working out as expected.