Most likely, the tree will not bear fruit. It takes about 5 to 15 years for an avocado tree planted from seed to start fruiting, if it does at all. It is best to start with a plant grafted on rootstock from a nursery in order to be sure it will be true to type; otherwise, fruit quality and yield will vary. (Grafted plants take about 3 to 5 years to fruit.) Also, some hybrid varieties won’t produce viable seeds, so you might not get fruit even after years of waiting. In addition, for best pollination, it is good to have at least two avocado trees that produce two different types of flowers (called Type A and Type B, describing when the flowers open and close and release pollen); you might still get fruit with just one plant, but not as many. Some varieties, though, can not self-pollinate.
Most likely, the tree will not bear fruit. It takes about 5 to 15 years for an avocado tree planted from seed to start fruiting, if it does at all. It is best to start with a plant grafted on rootstock from a nursery in order to be sure it will be true to type; otherwise, fruit quality and yield will vary. (Grafted plants take about 3 to 5 years to fruit.) Also, some hybrid varieties won’t produce viable seeds, so you might not get fruit even after years of waiting. In addition, for best pollination, it is good to have at least two avocado trees that produce two different types of flowers (called Type A and Type B, describing when the flowers open and close and release pollen); you might still get fruit with just one plant, but not as many. Some varieties, though, can not self-pollinate.