So just where do you find window boxes that don't look like something from a twee British cottage? We started looking, and this is what we found:
• Copper Window Box from Yardiac
• ODLA Flower Box Holder and SOMMAR Flower Box from Ikea
• Galvanized Tin Window Box from Simple Gardens
• Traditional Wood Window Box from Hooks & Lattice
• Fiberglass Window Box from Smith & Hawken
There must be other sources. Anyone?










Gardeners.com has great self-watering windowboxes.
Check out International Art Properties selection of planters. I believe they only sell wholesale, but if you know a designer, architect and/or landscape architect, they can buy them for you at cost.
http://www.iapsf.com/planters.html
I believe this is the company that manufactures the Gratia line of planters for DWR, which are marked up significantly.
http://www.dwr.com/productdetail.cfm?id=5317
Re window boxes, does anyone know about the rules in NYC for attaching window boxes?