Say it with (corporate) flowers

In Singapore, when a new restaurant, cafe or store opens, it is often accompanied by an array of flower arrangements on stands. These are from clients/suppliers/well-wishers. Most places will have a few such decorations outside. But this posh place near my office pretty much filled up the pavement on both sides of the door! This is just one side of it. Pretty, aren't they?

I'm not sure where this practice comes from. I'll try to find out. And after all that I am not even sure what the establishment was selling!