Of all the citrus plants, lemons and limes are the easiest to grow indoors as the tarter citrus (including kumquats) don’t need as much heat. If you grew up traveling to Florida during Spring Break to get away from the last clutches of winter, the scent of citrus flowers might transport you right back to vacation. What a treat! Not to mention the fact that fresh lemons or limes are at your disposal – just pluck one from your tree when you need a squeeze of fresh juice.
Start with the right pot – it should be deep enough and heavy enough to balance a fruit-heavy top, but narrow enough to keep the tree from growing to full size. It MUST have drainage holes in the bottom. If you want to move it outdoors when it’s hot, consider a saucer with wheels (or plan on using a dolly).
Soil should drain well and not be too rich. Put rocks at the bottom 2″ of the pot and use a soil blend especially for citrus – in some areas, you may only find cactus soil blends, but those work as well. Add fertilizer for citrus trees.
You can mail order your citrus if your local nursery doesn’t carry them or can’t order.
Water when the soil dries out (but not so dry that the leaves begin to curl), mist leaves occasionally, fertilize annually and enjoy fresh citrus – even if you don’t live in California.