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?
OK, yeah when the leaves fall off they are either fully green or just a little bit yellow. I am always paranoid about over-watering, as I have definitely killed plants in the past this way (especially potted plants). But maybe I should do as you say and give it a one-time burst of water