Plant Profile: Asimina triloba 'Overleese'

Asimina triloba, commonly referred to as pawpaw, is a small deciduous tree native to North America, reaching heights of 20 to 30 feet. This species typically thrives in clusters within alluvial or other moist, nutrient-rich forests and can tolerate some shade in the understory; however, it requires full sunlight to produce fruit effectively. The tree flourishes best in well-drained, slightly acidic, and fertile soil. It is a slow-growing species, taking several years before it begins to bear fruit. The 'Overleese' cultivar is a well-known variety recognized for its large, oval-shaped fruit, which features creamy yellow-orange flesh and a favorable seed-to-pulp ratio. This variety also tends to ripen later in the fall.

The leaves of the pawpaw are arranged alternately, emit a strong odor when crushed, and turn a vibrant yellow in the fall. The bark is smooth and dotted with wart-like lenticels. In the spring, the tree produces purplish-brown flowers with six petals. The fruit, which matures from late summer to early fall, measures between 2.5 to 6 inches in length and has a taste and appearance reminiscent of a short, plump banana, making it the largest fruit native to North America. To achieve cross-pollination, it is necessary to have more than one genetic variety.

Wildlife is particularly fond of pawpaw fruits and often harvests them before humans have the chance.

Regarding diseases, insect pests, and other plant issues, the pawpaw tree is generally resilient, as it produces self-defensive compounds that deter most insect pests.

For further details on Asimina triloba, additional resources are available.