The first thing I do with any floral print is check the color against actual daylight, not the lighting in whatever room I'm standing in when I buy it. A print that looks soft and warm under a shop's bulbs can turn sickly the second you get it home and the afternoon sun hits it. I learned this with a peony print that looked dusty pink in the store and turned bright coral in my hallway by three in the afternoon. It still hangs there. I just stopped looking at it around lunchtime.
Floral art has real limits, and I think people skip over them because flowers feel like a safe, uncontroversial choice. They are not neutral. A big, busy floral can fight with a room that already has patterned rugs, patterned curtains, or a grandmother's china collection on display. It can also read as fussy in a space that is otherwise clean and modern, like it wandered in from a different house. If your walls are already doing a lot of work, a floral print is one more voice in a conversation that is already loud enough.
Where it earns its spot is in rooms that could use some softness without needing a full redecorate. Bedrooms, especially ones that get morning light, feel calmer with a floral over the headboard, something with muted tones rather than anything too graphic. Bathrooms work too, oddly enough, since the humidity doesn't bother a good print the way it bothers wallpaper. I'd avoid north facing rooms that stay gray most of the day, since cooler colored florals can make that dimness feel even flatter. Warmer tones hold up better there.
The difference between a print that lasts and one that looks cheap in a year comes down to the paper and the frame, not the image itself. A thin, glossy print will yellow and ripple if it gets any humidity or direct light at all, which rules out most kitchens and a lot of bathrooms unless it is properly sealed behind glass. Look for a heavier matte paper, a frame with an actual rebate instead of a flimsy plastic clip back, and corners that are mitered clean, not just butted together and glued. Run a finger along the frame edge. If it catches or feels rough, that is a print that was made to be shipped, not lived with.
The one mistake I keep seeing, because I made it myself, is buying the print before measuring the wall. A floral that looked generous and full on a screen can shrink down to something apologetic and small once it is up, surrounded by too much blank wall on either side. Measure first. Buy the print to fit the space, not the other way around.