If you like hostas and can get to Ellisburg, New York (near Watertown), you'll love Rawlings Nursery. These people love hostas and have created beautiful gardens of all kinds/colors/sizes of hostas -- a joyful paradise that entices the visitor to want to lie down in the emerald green grass for a summer's nap. This whole area is just one more beautiful part of New York State - rolling farmland and hundreds of miles of rows of corn in the summer. Look Rawlings up and call ahead before you make the trip, just to be sure you've picked a good day for a visit.
...and - after visiting Rawlings Hosta Farm, here's a great spot for lunch:

A couple of miles from Rawlings on US Rte. 11 at the corner of Rte. 193 in Pierrepont Manor is The Manor Store & Diner. Cool old grocery store with a wooden ceiling turned into a breakfast, lunch, and dinner on Friday's restaurant. Great menu -amazing burgers and fresh cut french fries and service -- lots of local historical photos on the walls -- friendly service, easy parking in the front and on the side of the building, and a nice clean "necessary room" for patrons.
4685 U.S. Rte. 11, Pierrepont Manor, NY, (315) 465-4400