It’s surprisingly easy to grow your own avocado tree from seed. All you need is a lot of time and patience. First you need to remove the pit from the avocado carefully, and then do the washing.
Next step is to locate which end is up and which is down. Avocado pits have a bottom from where the roots will grow, and a top from which the sprout will grow. The slightly pointier end is the top, and the flat end is the bottom. You will need to place the bottom root end in water, so it’s very important to figure out which end is the top and which is the bottom before you do the next move.
Finally, you need to take three toothpick and stick them at a slight downward angle into the avocado seed, spaced evenly around the circumference of the avocado. These toothpicks are your avocado scaffolding, which will allow you to rest the bottom half of the avocado in water, so therefore the toothpicks need to be wedged in there firmly. Now you can put your baby avocado half submerged in a jar and placed it on a very sunny and hot place.You do want to make sure you change the water regularly (every 3,4 days), to prevent mold, bacteria and fungus growth, which can doom your little avocado sprout. In a couple of days I remove gently the brown skin on the pit to accelerate growth.
After one month root will grown, after two you will have little tree.
When the tree is about 15 cm you need to plant avocado in pots.
Give it frequent watering with an occasional deep soak. The soil should always be moist, but not saturated. Yellowing leaves are a sign of over watering; let the plant dry out for a few days.
Sometimes avocado plants will begin growing fruit after they’re 3 or 4 years old, others take more years to grow fruit.