An avocado tree makes a striking houseplant, regardless of your climate. Avocados grow from the pit, or large seed, inside the avocado fruit. While avocado plants grow outdoors in areas with warm summers and mild winters, they can be grown indoors year-round in colder regions or planted in outdoor pots that are brought inside for winter. Save a pit from your next avocado after eating the fruit and try planting it in a pot and growing your own avocado tree.
Fill a bowl with lukewarm water. Place the avocado pit in the bowl so it is submerged and soak overnight. This softens the hard husk and makes it easier for the plant to sprout.
Fill a 2 to 5-gallon clay pot with a well-draining, sandy potting soil. Soil-less mixes containing vermiculite can be substituted. Water the potting soil until it is evenly moist throughout.
Plant the avocado seed with the larger side pointing down and with the top of the seed no more than 1 inch beneath the soil surface. Place the pot in a warm room that receives bright, indirect sunlight.
Water as needed to keep the soil moist but not soggy. Check soil moisture daily as the avocado will not sprout if the soil dries out too much. Avocado seeds take three to five weeks to germinate.
Cut the main stems of the avocado tree back to 3 inches once they have reached 6 inches in length. Use clean gardening shears for pruning. Cutting back encourages full and bushy growth, desireable in a house or patio plant.
Water the young plant when the soil surface begins to feel dry to the touch. Place it in an area inside or out that receives six to eight hours of bright, indirect light and with a temperature over 60 degrees Fahrenheit.