Want fresh lettuce without the fuss? Skip the soil and learn how to grow it hydroponically on your countertop or windowsill.

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. If you want an ...

Open the doors, and you’ll find hundreds of growing lettuce and kale heads ... rich liquid solution and blue and red grow lights. Cincinnati Zoo Hydroponics Technician Zack Burns works hands ...