In my home, artificial lights are the only source of light. Natural light is ideal, but depending on your windows, room layout, which direction your home faces, and even the season, it’s not always enough for indoor plants. Light levels indoors can drop a lot during winter, especially in darker rooms or corners farther from windows. That’s where grow lights can make a huge difference.
Why You Need a Light Meter
A light meter helps measure the exact amount of light your plants receive. This tool is perfect for determining whether your plants are in the right spot or if they need a boost with artificial lighting.
To know which grow light to use, think about your plant’s light needs. Lower watt bulbs generally need to be placed closer to the plant, while higher intensity bulbs can be farther away. The key is using a light meter! Measure the foot candles and adjust the distance accordingly... it's simple! (foot candle guide at the bottom of this page.)
Grow Lights Aren't Ugly Anymore!
Good news!! Grow lights don’t have to be eyesores! From grow light bulbs that you can fit in a stylish lamp, to sleek floor lamps with built in lights, you can find lighting that keeps your plants thriving and looks great in your space.
It depends on your plant’s light needs and where you’ll place the bulb. If your plant requires more light, go for a higher wattage bulb (around 24-32 watts) and place it further away. For plants that need lower light or if the bulb is closer (within a few feet), a 10-15 watt bulb should work well.
I usually leave my lights on for 16-18 hours a day, but a general rule is 12-16 hours for most plants. It’s not a big deal if they don’t always get a full 8 hours of darkness.
Yes! Plants exposed to too much direct light may develop scorched, crispy leaves or pale, bleached spots. If you notice these signs, move the plant to an area with indirect light or increase the distance from the light source.
Understanding Light Intensity for Indoor Plants
The amount of light your plants receive can dramatically affect their growth. Here’s a quick breakdown of different light intensities and what they mean for your plants:
|
Light Intensity |
Foot Candles | |
|---|---|---|
|
Low light |
100 - 250 |
Low light doesn’t mean no light! Good enough for low-light tolerant plants like snake plants or ZZ plants. |
|
Medium light |
250 - 500 |
Suitable for many houseplants. Think areas close to a window, but not in direct sunlight. |
|
Bright, indirect light |
500 - 1,000 |
THIS is my golden standard—Most indoor plants thrive here, and flowering plants are more likely to bloom. |
|
Direct light |
1,000+ |
Great for succulents and cacti. This light mimics outdoor conditions, usually near south-facing windows. |
Information provided is believed to be accurate but should be independently verified.