Use a ripe banana from a seed-producing banana variety, not a common seedless supermarket banana
Remove the pulp and collect the black seeds from the banana
Rinse the seeds thoroughly to remove all fruit residue
Soak the seeds in warm water for 24 to 48 hours
Fill a pot with well-draining, fertile potting mix
Plant the seeds about 1/4 inch deep in the soil
Keep the soil consistently moist, not waterlogged
Place the pot in a warm location with bright indirect light
Maintain temperatures around 75 to 85°F
Be patient, since banana seeds can take weeks to months to germinate
Transplant seedlings into larger pots as they grow
Move the plant outdoors only after frost risk has passed
Choose a sunny, sheltered spot with rich, moist soil
Water regularly and feed with a balanced fertilizer during the growing season
Protect the plant from cold weather and strong winds