How to Choose the Best Indoor Lighting for Plants

When growing most houseplants, use light bulbs between 4000 and 6000 Kelvin, as the bulb's color temperature will borrow from a full spectrum of colors—cools and warms. With these lights, you can actually mimic the growth you would get in a greenhouse or outdoors. Culinary herbs, greens and starter plants can be grown year-round with them. Houseplants that need lots of light, like cattleya orchids, succulents and carnivorous plants, also perform much better under these full-spectrum lights. With starter plants and seedlings, place the T8 or T5 bulbs two to four inches from the plants to mimic the sun. For established plants, including herbs or houseplants, place them a foot or two from the light source.