I just looked up if flowers respawned and this is the first result. Lmao. I 100% agree, I would love more in-depth flower propagation (holding out for even a similar system for fungi!) Though really adding propagation and renewable resources like this just makes me feel more secure and less bad about totally destroying the local ecosystem as a player, lol. Sustainability features like this benefit longterm play and make for less for me to worry about down the line. Stuff like this is a must!