I have some pretty little botanicals I inherited from my granny. I like the idea of covering a wall with them. If you like this idea too, check out these sources on Etsy for cheap prints! Another idea: Buy an old vintage book of botanicals and tear out the pages. The fun part is you can find all styles, from super kitschy to a little understated. Here are some of my favorites for a bit of inspiration:
Top photo from Still Knitting on Etsy. Other photos from respective sources.