Cut a 4- to 5-inch softwood cutting in early spring, or a hardwood piece after the plant has gone dormant, in January or February, using pruning shears. Choose from the youngest shoots of the plant, usually in the top part of the bush.
Remove all flower buds. Also, discard the foliage, except for two or three leaves at the end opposite from the cut. Keep the cutting moist. Don't store it to propagate later.
Insert your cutting halfway into the ground. Keep the soil moist without saturating it.
Apply a complete liquid fertilizer once your new blueberry bush has grown roots.
Transplant your cutting into a pot if it's in a propagation bed outside. Your new plant won't be ready to move outdoors for about a year. The winter after propagation, plant your new blueberry bush in its final location.