Organic matter (compost, aged manure, or peat moss)
1. Locate a planting spot with both shade and sunlight. Pawpaws produce the most fruit in full sun but seedlings require shade for first 2 years.
Choose a location in full sun and provide some shade during growing period (spring, summer, fall), some options below:
Enclose seedlings in chicken wire (which will also protect it from animals) and use 50% shade cloth over the top
Plant seedlings on the north side of a fence giving shade while young and sunlight when mature and taller than the fence line
Sow your pawpaws south of nitrogen-fixing tree (i.e., black locust, mimosa, alder, redbud, etc.) It will provide young pawpaws shade and soil fertility. Cut it down 2 to 3 years later, when seedlings are old enough that sunlight exposure won't cause sunburnt leaves
Plant near water source if possible, they like moist soil conditions
2. Confirm that your soil's pH is between 5.5 to 7.0. Pawpaws prefer slightly acidic soil.
Check soil pH with soil pH meter, if the pH is outside of the recommended range, use limestone to adjust
Add dolomitic limestone to raise pH if soil has low levels of magnesium
Add calcitic limestone to raise pH if soil has high levels of magnesium
Addition of ground oyster shells, crushed eggshells, and wood ashes can also be used to adjust soil pH levels
OR contact your local extension office to have your soil tested and adjust per the instructions in your test report
3. Test soil drainage by digging a hole and filling it with water. Pawpaws require properly draining soil, ideally half air space and half solid soil, with approximately 2 to 5% organic matter.
Dig a hole 12"-18" (30-46 cm) both across and deep and fill it with water; if it takes 1 hour or more to drain, your soil does not have proper drainage
Add organic matter into your soil to improve drainage: manure, compost, or peat moss are great choices of organic matter that can improve soil drainage
4. Dig a hole with your spade as deep as the root system and 2x or 3x the diameter of the root mass. This ensures that it has plenty of room to continue growing.
Loosen the soil at the bottom of the hole with a spade or fork for ease of root establishment
5. Space your pawpaw plants 8' (2.4 m) to 15' (4.5 m) apart. Any further and nutrient sharing between plants will be unlikely.
Use at least 3 varieties of pawpaw for optimal cross-pollination
6. Plant your seedlings to the same soil depth as in the pot. Always plant into a depth equal to their potting depth.
Remove seedlings and soil from growing container and place in hole
Take care not to damage the brittle roots
Use spade to fill hole with 1/2 soil from the hole, 1/2 potting soil
Place soil around the roots and press firmly down
Create a ring of leftover soil around the hole about 2" (5.1 cm) in height - this will help water soak into the soil
Water thoroughly after planting
7. Protect your seedlings for the winter.
Protect first-year seedlings from wind and animals
Place 5 gallon bucket with bottom punched out around planted seedling, with seedling centered inside
Bury bucket 2"-3" (5–7 cm) in the ground so it is stable
Apply thick layer of mulch at base of seedling (2"-4"/5-10 cm) for insulation
Secure chicken wire or window screen over top to prevent animals getting inside
Keep well-watered until ground freezes
8. Water your plants regularly to maintain soil moisture (until ground freezes). Once trees are established and growth accelerates, they don't require much care.
Pawpaw trees require adequate soil moisture, especially in the first 2 years after planting
Apply a layer of mulch to aid in keeping the soil moist and control weeds in spring
Do not overwater – yellowing leaves may indicate overwatering
9. Fertilize your pawpaws 2x a year in March and June. Regular fertilization increases growth and fruit production.
Use water or a rake to distribute fertilizer throughout the soil
Avoid the 2" (5.1 cm) area by the tree trunk
Use balanced fertilizer (20N-20P-20K)
Do not fertilize after July 1—this will promote later growth that can lead to freeze damage
10. Grow healthy trees that will produce fruit in 5-8 years!
This guide does not intend to be comprehensive of all viable techniques for growing pawpaws from seeds, simply a recommendation of simple and effective methods
Good luck and have fun planting this amazing fruit!!!