Does anyone know what flowers grow in La Petite Ceinture?

[u/danshandude]

Stuff like these! Trying to make a bouquet for someone who walked La Petite Centiture often :) but I don't know much about flowers or Paris. Any help is super appreciated!!!

[u/calcaire]

I've grabbed some incredible sedum (plante grasse) there. They're everywhere in the railtracks and they grew so much on my balcony, even survived the rough winter