What's the best way to go about employing a gardener?
We've just bought a listed property in rural Somerset with semi-restored, potentially beautiful but currently wild gardens! We are clueless but eager to learn. The total area is about 3 acres, some of which is lawn, some orchard, some meadow but there is a large walled garden, lots of vegetable beds, a parterre (?), fruit cages, sunken rose beds, an arbour...some of these words are new to me 
. Given our incompetence we clearly need someone skilled and not just a landscaper (hubby is from a farming background and pretty good with that stuff).
Where would I find one? I'm thinking we probably need someone 3 days a week, maybe more? How much would be a reasonable hourly rate? I'm thinking about putting an advert in the local paper but am unsure what to write? Thank you!!