Actually, Google is your winery's home page:
... it’s a simple reality that many organizations are either overlooking or ignoring today. People are starting to view the Google search bar as their URL entry box. Instead of typing "www.zappos.com" people are simply typing the world "Zappos" into a search form.
Similarly, people just type your winery name into the address bar and let the browser's default search engine do the work. And of course, in Google's Chrome browser, there's just one box. Type in a URL or a search phrase -- it doesn't matter to Chrome.
That's why it's so important to know what search terms bring people to your site, and just as importantly, which page they land on for each phrase.