NDSU Extension Service Horticulturist A fruit tree normally begins to bear fruit after it becomes old enough to blossom freely, provided other conditions are favorable. Tree health and environment, bearing habit, and the cultural practices used can all directly influence its ability to produce fruit. Most nursery-produced fruit trees have tops that are one to two years old. The length of time required for them to bear fruit after planting varies with the kind of fruit. Apples usually bear fruit in 4-7 years while plums may bear as early as the third season after planting.
All fruit trees require pollination to produce fruit.
Unless pollination takes place, trees can blossom abundantly but not bear. Bees are necessary for cross-pollination between two different tree fruit varieties. High winds, steady rainfall or cold temperatures can reduce bee movement during the flowering period. Consequently, poor pollination may occur under adverse weather conditions, resulting in poor fruit set. Extremely low temperatures during winter dormancy may kill or damage fruit buds.