Choose a site for your carrot pots that will give the plants 5 to 10 hours of full, direct sunlight per day.
Mix regular potting mix and peat moss in a 50:50 ratio, filling up a clay or plastic 1-gallon pot within 1/2 inch from the rim. Choose a pot with drainage holes; carrot must have well-drained soil to grow properly.
Plant three carrot seeds 1/2 inch deep into the soil, spacing them evenly in a loose circle or triangle near the middle of the pot.
Water deeply to moisten the soil, and place the pot on top of a shallow tray strewn with pebbles. The tray will catch moisture that drains from the pot.
Fertilize with balanced, 10-10-10 fertilizer to give the new carrots plenty of nutrients. After seedlings grow, add fertilizer every two to four weeks until you harvest the carrots.
Cover the pot with a layer of thin, clear plastic wrap and place in the site you selected previously.
Check the pot daily for seedlings. When they appear, peel back the plastic wrap and discard it.
Touch the soil with your hand once or twice a day. If soil is dry, water it until you see liquid coming out of the drain holes at the bottom of the pot.
Harvest carrots 50 to 70 days after you plant them, when they are 1/2 inch in diameter or larger.