I love flowers. My cats love flowers. The problem with both is that unless you do your research, you could end up with a very beautiful (but very toxic) arrangement of flowers that is within reach of your curious, chewing kitties.
The ASPCA provides a good list to get started
You can have roses but not pared with carnations. Seasonal flowers like Lilies and Poinsettias are nixed. A good rule of thumb is if the stem is milky, it’s probably going to be bad for your cat.
We like to stick with Sunflowers around here. I like them and the cats touch them very little. Maybe you have one in the list that you feel safe with.