Right now only ecommerce companies have checkboxes for what they specialize in. The only way to find local garden centers is to just see them in the big list.
But VERY soon I will indeed have a special search where you can enter your location (zipcode, etc) and it'll find the garden centers and public gardens closest to you. Hint: add your local garden centers and display gardens now, so that when the feature is ready, others in your area can find them!
