Gumi, goumie, goumi and cherry elaeagnus are common names for the Elaeagnus multiflora shrub from the Elaeagnaceae family. This deciduous shrub can reach heights of 8 feet or more, with an equal spread and produces small, fragrant blossoms in the spring. Grown as an ornamental or for the flavorsome and showy fruits, gumi shrubs are native to Japan and China. Rooting gumi cuttings requires skill and patience, because according to the Plants For a Future, it typically takes 12 months for the gumi cuttings to root.
Get gumi hardwood cuttings in the fall when the plant is dormant. Take heel cuttings from a healthy branch about 4 to 6 inches long. Heel cuttings include a small amount of the older wood at the bottom of the cutting.
Fill a container at least 3 inches deep with high-quality potting soil. Alternatively, you can make your own mixture using 1 part peat and 1 part sand or 1 part peat and 1 part perlite (by volume). Dampen the mixture.
Make holes for the gumi cuttings using a stick or pencil. Space the holes close together and to a depth equal to one-half the length of the cuttings.
Pour some of the rooting hormone on a paper plate or paper towel. Dip the hardwood gumi cutting into the hormone, and then shake off the excess powder.
Carefully place a cutting in the hole to avoid removing the rooting hormone. Firm the soil around the gumi cuttings to hold them upright.
Cover the container with plastic to maintain a humid environment. Place the hardwood cuttings in a location with indirect light.
Check the growing medium regularly, and mist to keep the soil moist, but not soggy.
Monitor the gumi cuttings for signs of rooting every four months or more. Gently pull on the cuttings to see if there is resistance, or carefully lift the cuttings to check for roots.