Show up in a nice, clean navy blue cotton pressed work uniform, with your name on the pocket. Let them know this is your uniform you wear on the job, with ID. Cover what they want done, that falls under the salary and hours you think it is worth. Make sure your insured for business, and let them know..since you are private..have your copy. What you don't think you can handle, they want..sub it out, with cooperation that you get something from the deal with them. Not this person. Just let them know you are qualified.
What kind of questions will one face at a prestigious establishment looking for a gardener? Shoulr you also dress smart casual? Suit and tie? etc?