Lemon tree bloom drop
My lemon tree is producing good blossoms. I'm pollinating them with a brush. Blossoms keep falling and I don't see any fruit. Watering and fertilizing as directed. Why is there no fruit?. Received in Dec; now Feb. South side window.
Certified GKH Gardening Expert
This will be due to lack of light. Even with a South facing window, there will not be near enough light. My citrus are, strictly, indoors so they are under artificial lighting.
Generally, I recommend at least 200 watts of quality horticultural lighting per tree. They are very light starving and will not bear fruit without enough of it.
There are many different types of lighting available. Should you choose HID bulbs, they will require ventilation and quite a bit of air movement. GOOD QUALITY LED will not need near the ventilation and will not need to be changed yearly, as with HID bulbs, but they are very pricey.
KIND LED is my choice, since the larger fixtures are completely programmable, but they are not budget friendly. It is best to do research into the LED company before purchasing if you decide this way. LEDs get a bad reputation from cheap companies.