Tim's Urban Gardening presents Hydroponic Gardening Introductory Workshop. This 45-minute workshop will cover the basics of hydroponics and the key elements to begin growing fresh herbs and lettuces at home. You'll learn to set up your own hydroponic, countertop herb gardens and small indoor gardens. FREE to the public. Pass-the-hat suggested donation $5-$15. A complete garden kit will be given away to one lucky participant.