Young plants need lots of light to grow, but when started indoors, natural isn't always best. Learn seedling light requirements – and when to give them a boost.

Your Grow Light Is Probably Too Far from Your Plants—Here's How to Place It Correctly Grow lights often need to be closer to plants than you'd think.

Whether you're tending to houseplants or starting your own seeds, here's how you can use, choose and shop for grow lights.

Whether you use PPFD or another metric, be aware that light intensity decreases rapidly with distance. Grow light manufacturers usually list the distance where the PPFD rating was measured.

There are three main grow light colors you will see when browsing lights to purchase. Blue lights are best suited for starting seeds, growing leafy greens, and other non-flowering houseplants.

In low light environments, many plants will struggle to stay healthy. We tapped testers to find the best grow lights for all your indoor herbs and plants.