Italian Plum Tree (Prunus domestica) - 7 Gallon Potted Fruit TreeAn Italian plum or prune is a type of small fruit bearing tree native to Europe. Also called fellenburg, the Italian plum is often planted by homeowners wishing to grow edible fruit on their property. Reaching heights of 1520 feet (4. 66. 1 m), full grown Italian plum trees have a spread slightly wider than their height. Italian plum trees are drought tolerant and good in high heat and humidity environments. They generally need about six hours of full