Kentucky State University Cooperative Extension Connections
Common Planting Questions
What is a pawpaw?
- The pawpaw (Asimina triloba) is a native tree fruit commonly found in the forest understory in the eastern U.S.
- Trees grow well in USDA Hardiness Zones 5–8.
- The ripe fruit has yellow to orange flesh with a tropical flavor often described as a blend of banana, mango, and pineapple.
Where should I plant pawpaw trees?
- Pawpaw trees grow best in slightly acidic soils (pH 5.5–7.0).
- They prefer moist, well-drained sites but should not be planted in areas that remain flooded for long periods. Avoid heavy clay soils.
Should I plant grafted or seedling trees?
- Seedling trees are less expensive but have unknown fruit quality and may take 5–7 years to flower and fruit due to juvenility.
- Grafted trees cost more but produce fruit of known quality and often begin bearing in 3–4 years.
Should I plant more than one tree to get fruit?
- Yes. Pawpaws are generally self-incompatible and require cross-pollination.
- Plant at least two genetically different trees. Two grafted trees of the same cultivar will not effectively cross-pollinate.
When is the best time to plant pawpaw trees?
- Dormant trees can be planted in spring (March–April in Kentucky) or fall (early November).
- Trees with leaves should be planted after the last frost date, typically in May.
Can pawpaw trees be planted in full sun?
- Young trees establish best in light to moderate shade.
- Mature trees produce the most fruit in full sun. Heavily shaded trees will produce few fruit.
Should I use a tree shelter or grow tube?
- Yes, especially for trees less than 2 feet tall.
- Tree shelters provide shade, reduce wind stress, conserve moisture, and protect trees from animals and herbicides (Fig. 1).
- They can significantly improve survival during establishment.