What makes your walled garden unique? You need to identify this, then look at ways you can make this uniqueness accessible to people, ie. ‘Tell the story’. Then you need to market it appropriately – there’s no point in spending all that money if you don’t tell people about it! Innovation is important from the start, continually re-inventing to keep the concept fresh. And then it is all about attention to detail: keeping the plants and displays looking pristine, designing good interpretation, and looking carefully at layout, flows and zoning. If in doubt go and look at other visitor attractions, walled gardens and otherwise, and judge what makes them work.