Plant Profile: Asimina triloba 'Sunflower'

Asimina triloba, commonly referred to as pawpaw, is a small deciduous tree native to North America, reaching heights of 20 to 30 feet. This tree 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. It flourishes best in well-drained, slightly acidic, and fertile soil. As a slow-growing species, it takes several years before it begins to bear fruit. The 'Sunflower' cultivar is particularly noteworthy for yielding a substantial crop of large, sweet fruits weighing between 8 to 16 ounces, with a fruiting season that extends longer than that of most other pawpaw varieties.

The leaves of the pawpaw tree are arranged alternately, emit a strong odor when crushed, and turn a vibrant yellow in the fall. Its bark is smooth and features 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 multiple genetic strains of the tree.

Wildlife is particularly fond of pawpaw fruits and often harvests them before humans can.

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

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