If the petals are on the driveway then my way of clearing wont work, but I put the lawn mower on high and mow them off the lawn every 2/3 days. Chopped up they go into the compost bin.
On the bed underneath the tree (which is large having been there since before we were) I leave the leaves (!) to break down into the soil, as they turn brown and don't show very much.
Pathways and driveways need a different approach!!
Static caravan purchase is it worth buying