Use Grow Lights to Grow Citrus Fruit Indoors

Grow citrus indoors with 12 to 16 hours of supplemental light. You can get good growth and vigor from citrus using MH/CMH, CFL, or intense HO T5 lamps, but you’ll need a full-size grow lamp.

You can also place citrus plants inside grow tents with HID lamps for best production. If you have very bright south-facing windows, you may be able to combine that natural light with a few spotlight CFLs to keep a group of citrus happy in your living room.

Gardening Under Lights Book