How to Grow :
Step 1 : Soak the seed in warm water for 24 to 48 hours to break the seed dormancy. This softens the seed coat, enabling the embryo to sprout more easily and rapidly.
Step 2 : Prepare an outdoor bed in a sunny area or use a seed tray or other container and fill with potting soil enriched with plenty of organic compost in the amount of 60% sand or airy, loam to 40% organic matter.
Step 3 : Sow the banana seeds 1/4 inch deep and backfill with compost
Step 4 : Water the seeds until the soil is moist, not drenched, and maintain damp conditions while growing banana trees from seeds.
Step 5 : When germinating banana seeds, even hardy bananas, keep the temperature at least 60 degrees F. (15 C.). Different varieties respond to temperature fluxes differently, however. Some do well with 19 hours of cool and 5 hours of warm temps. Using a heated propagator and turning it on during the day and off at night may be the easiest way to monitor temperature fluctuations.
Step 6 : Once the seeds are germinated transfer them into bigger pot/planter or bigger sunny area.
Disclaimer : The time that a banana seed germinates depends on the variety. Some germinate in 2-3 weeks while others may take two or more months, so be patient when propagating banana plants via seed.