I have this Meyer lemon tree in a pot. The leaves are slowly but steadily falling off, and each little lemon turns completely black and falls off before it even grows to like a centimeter or two. What could I be doing wrong? I have a soil moisture meter and I only water it when the meter reads "dry". Could it be my grow light isn't right or isnt strong enough?
The light looks underpowered for the plant's needs. Take a look here at the "lighting for indoor trees" section and compare those specs to the light you're using. I've seen a number of inexpensive "grow lights" that don't produce the necessary spectrum or lumens, so be sure to take note of the manufacturer specifications if you decide to replace your lights
That looks like a really good resource, and according to it I do have a few things wrong. Seems like the light is probably under powered, although its hard to tell since I can't find the specs on it anywhere (GE model #93101232). So looks like I'll have to upgrade the light. I also put stones in the bottom of the pot and that link says specifically not to do that, I wonder how bad that actually is since it would be kind of a pain to get them out now