They are hardly essential, but can act as useful teachers
The problem
Lots of houseplants fail because they aren’t getting enough light. But what does “bright, indirect light” really mean in practice? Light meters and apps promise to turn guesswork into numbers, but are they useful, or just kit for professionals and plant nerds?
The hack
Light meters measure the amount of light hitting a spot. Some are dedicated devices; others are phone apps that use the camera sensor. Instead of guessing whether a corner is bright enough, you measure it and then find the right plant for that spot with more confidence.
