Buy from Amazon : http://www.amazon.com/gp/product/B001D1D80E?tag=scratchandsti-20
Tierra Garden GP71 Windowsill Self Watering Plant Tray
The perfect plantsitter - go on vacation with no worries about your plants The plants sit on matting and draw water as needed Perfect for use in the greenhouse Terra cotta pots work great with this system Measures 30-inch by 7-inch by 1-12-inch Keeps plants watered for up to 14 days