Time Is Money
I know you don't like to work for free. I charge for my designs and tell them if they hire my company to do the job, I will take off the price of the design from the total price of the job. You can always make that up in the cost of the job. Everybody's is happy. They get a great design and landscaping, and you get paid for all of the time you have put into it.
Major League Landscaping