Asimina parviflora

Dwarf pawpaw (Asimina parviflora)
Scientific name	Asimina parviflora [1]
Common names	Dwarf pawpaw; small-flowered pawpaw [2]
Genus	Asimina
Family	Annonaceae
Order	Magnoliales
Habit	Deciduous shrub
Native range	Southeastern United States [2]
Fruit	Edible; 1–3 in (2.5–7.6 cm), yellow-green, dark brown when mature [2]

Asimina parviflora, commonly called dwarf pawpaw or small-flowered pawpaw, is a deciduous southeastern U.S. shrub with edible fruit. It is a smaller-fruited relative of common pawpaw and is chiefly useful to growers interested in a native understory shrub rather than a commercial fruit crop. ^[1][2]

Description

The plant is associated with dry pine or oak forests and thickets. It commonly grows about 6–8 ft (1.8–2.4 m) tall, although an Alabama extension account describes mature fruiting plants as often only a few feet tall and reports growth to about 10 ft (3 m) in ideal conditions. Its long taproot makes established plants difficult to transplant, so choose the planting position carefully and disturb the root system as little as possible. ^[2][3]

The flowers are brownish purple and are produced singly before the leaves emerge. ^[2]

Cultivation

Soil and water

In its native southeastern range, small-flowered pawpaw occurs in dry pine and oak woods and thickets. Begin with loose, well-drained soil that can remain evenly moist without staying saturated; the documented habitat also includes moist-to-dry conditions. Avoid routine root disturbance, because the species develops a long taproot and is difficult to move once established. ^[2]

Sun and humidity

Partial shade is suitable while a plant establishes, and established plants can tolerate full sun. A site with good air movement and regular soil moisture during establishment is a practical starting point, while the species' association with dry southeastern woods argues against permanently wet soil. ^[2]

Seasonal changes

The species is deciduous. In a central-Florida study, flowering extended from mid-February through the end of March, while the North Carolina profile lists the fruit display and harvest period as July through September. Timing will shift with latitude and local weather; reduce irrigation as the plant enters its cool-season leafless period, but do not allow a newly planted specimen to dry severely while roots are establishing. ^[4][2]

Propagation

For propagation, begin with the genus-level pawpaw methods of fresh seed, layering, or root cuttings, but treat them as trials for Asimina parviflora rather than assume that common-pawpaw timing, rooting rates, or handling requirements apply. The long taproot also makes early root protection important. ^[5][3]

Flowering, fruiting, and harvest

Flowers are protogynous, so the female phase generally precedes the male phase, although some overlap occurs. Diptera were the main flower visitors in the central-Florida reproductive-biology study. In that study's reported treatments, hand cross-pollination produced 16% fruit set in 1984 and 25% in 1987; self-pollination produced 10.4% in 1984 and 0% in 1987, while open-pollinated flowers produced 3.2% fruit in 1984. The abstract does not provide the full methods or sample sizes, so these percentages should be read as results from that study rather than fixed expectations for every site. ^[4]

Plant at least two genetically different plants when fruit production is important. North Carolina guidance identifies more than one genetic strain as necessary for fruit set. ^[2]

The fruit is cylindric, about 1–3 in (2.5–7.6 cm) long, yellow-green and maturing dark brown. North Carolina lists July through September for the fruit display and harvest period. Alabama guidance describes the fruit as small and notes that the species is not grown as a commercial fruit crop because it is much smaller-fruited than common pawpaw. ^[2][3]

Fruit and uses

The fruit is edible and can be used in cooking. Its small size makes it better suited to occasional home harvest and native-plant collections than to commercial production. ^[2][3]

Photos

References

• ↑ [1] GBIF species match: Asimina parviflora.

• ↑ [2] Asimina parviflora (Dwarf Pawpaw, Small-flowered Pawpaw) — North Carolina Extension Gardener Plant Toolbox.

• ↑ [3] Pawpaw Production Guide — Alabama Cooperative Extension System.

• ↑ [4] Norman, Rice and Cochran (1992), “Reproductive Biology of Asimina parviflora (Annonaceae),” Bulletin of the Torrey Botanical Club 119(1): 1–5.

• ↑ [5] Pawpaw — UF/IFAS Extension Gardening Solutions.

Image credits

• Asimina parviflora fruit.jpg: Brucewinter, “Fruit of Asimina parviflora,” Wikimedia Commons, CC BY-SA 4.0.
• Asimina parviflora.jpg: Mason Brock (Masebrock), “Flowers of Asimina parviflora,” Wikimedia Commons, public domain.
• Asimina parviflora flower.jpg: Brucewinter, “A flower of Asimina parviflora,” Wikimedia Commons, CC BY-SA 4.0.