Cut open an Asian pear and remove the seeds. Wash the seeds in a bowl of water to remove the pulp. The seeds are also sold online or in most garden centers.
Dampen a paper towel and squeeze out the excess water. Fold the paper towel in half and place the seeds on the paper towel. Fold the paper towel to cover the seeds and place this in a sealable bag. Put the baggie into the refrigerator and leave it there for three to four months. This is to stratify the seeds. Check the paper towel every month for moisture. If the paper towel dries out, spray some water on it to moisten.
Cover the drainage holes of your 4-inch pots, by putting a coffee filter at the bottom. Fill 4-inch pots with potting soil to 1/4 inch below the rim.
Sow one seed in the center of each pot. Push the seed 1/4 inch below the soil's surface with your finger or a pencil and cover the seed with soil.
Water the pots thoroughly until the water comes out the drainage holes at the bottom.
Cover the pots with clear plastic and place them in a warm location. The top of the refrigerator works well for this, but do not put the pots in a bright or sunny location.
Check the pots for moisture every day. Sprinkle the soil with water to keep it moist.
Remove the plastic bag when the Asian pear seeds germinate. Move the pots to a sunny location, like a sunny window. Continue to grow the Asian pear seedlings in this area until they are 6 inches tall. Transplant the Asian pears into the prepared area after all danger of frost is past.