How to Grow an Avocado Tree from a Pit
There are two ways to grow an avocado plant from a pit, which is the seed. One involves suspending the pit or seed in a glass of water. The other, which is the more traditional route, simply requires dirt. Both methods will produce a plant, however, you may find that you’re more comfortable or more successful with one than the other.
The Toothpick Method
Begin by removing the pit from your avocado. Carefully cut it out of the center, without damaging its brown covering. Gently wash off any fruit scraps that may remain so the seed is completely clean. Soak it in water for a few hours and then let it dry on a paper towel.
Next, find the top of your seed. It’s generally a little more pointed than the bottom. It’s important to locate, because this is where the plant will sprout so you don’t want that part of the pit submerged.
Poke the avocado pit with three or four toothpicks and balance them on the rim of a cup or glass. You can place them on a bit of angle so the seed will drop down into the cup a little further, if necessary, then fill the container with enough water to cover the bottom half of the seed.
Place the container in bright, indirect sunlight and make sure to refill the water as it evaporates and replace it altogether if it begins to turn colors or gets cloudy. You don’t want your seed to rot or get moldy.
In a few weeks time, it should split open and drop roots. Then a little while later it should sprout. The entire process could take anywhere from two to eight weeks, so don’t give up hope if you don’t see anything happening right away.
When your sprout reaches a height of about 6 - 8 inches, prune a few inches off so it fills out. When it reaches that height a second time, you can move it to a pot.