Grow light gardening

Dear Master Gardener, I would like to know what kind of grow lights I need to install in a grow light garden. What does it mean full spectrum? Do plants need green? What are high-intensity discharge? Would a 2 40…

Growing under lights

I bought an Agro light for my indoor plants since there is not enough sun coming thru the windows at this time of the year. Can you please tell me as to: 1. How many hours should I turn it…