Indoor Grow Lights for Houseplants: How to Choose and Use Them
Quick answer: Most houseplants need supplemental light from roughly October through March in northern temperate climates (USDA zones 3–6), when natural daylight drops below eight hours. Choose a full-spectrum LED grow light around 4000–6500K, hang it 20–40 cm (8–16 in) above the plant, and run it 10–14 hours a day on a timer. That single…