Three-year-old blood orange trees grow in different sizes in different soils. It usually takes three years to grow to 100-150cm, and it is ready to bear fruit. However, depending on the size of the sapling, it is not advisable to bear too many trees to avoid breaking the branches. Blood orange is a variant of orange, a citrus plant in the Rutaceae family, and is named after its dark red, blood-like flesh. The color of blood oranges is caused by anthocyanins. The flesh is attractive and nutritious. Common varieties include Tarocco blood oranges from Italy and ruby ??blood oranges from China. Blood orange grafted seedlings usually begin to bear a small amount of fruit in 3 to 4 years. At this time, the tree height is about 60 to 80 cm, the crown width is about 40 to 50 cm, and the ground diameter is 1.5 to 2.0 cm. The amount of fruit bearing begins to increase significantly after 5 to 6 years. However, if the three-year-old seedlings are purchased directly, the tree crown may be small due to the seller's high planting density, and the trees may be heavily pruned when sold, so they will not bear fruit that year. After purchase, they will need to be planted for another one or two years before fruit will bear.