If I knew where they were I would be putting my flyers there instead of telling you.
What I do know is that it's hard to add customers after Memorial Day. Though I put out flyers yesterday.
So keep on working an ever longer radius from your home. It's a hit and miss process.
Don't you think that every landscaper knows where all the rich people live? There are no hidden pockets of rich people waiting for you to come a long.
And because they are rich is no gaurantee that they will not be cheap bastards and bitches expecting to pay you as if you were their employee rather then as a business owner.