These tours are over, but even these brief garden descriptions may be useful to others.   When I visited Mary Manilla’s garden in Hawley this week it was a ribbon of green along the stream that borders the garden. By the time the Hawley Garden and Artisans Tour takes place on Saturday, July 11, there will be a river of color along the stream as the hundreds and hundreds of daylilies in every hue come into bloom. It…