In Reference to Growing a Papaya Tree from Seed
We’re in NY, and we can only grow papayas in pots.
You didn’t say where you wanted to transplant it. If you’re in a warm climate and want to transplant it outdoors in the ground. Let it get accustomed to the outdoors in the pot for a few weeks before transplanting it. You should also give it some loose supports to keep it from blowing over in the wind, but loose enough to allow it to sway back and forth to strengthen the stem.
When you transplant it, let the soil in the pot dry somewhat so that it will come out of the pot in a ball, and dig a hole slightly larger than the pot with loose soil in the bottom. Carefully slide a knife around the inner side of the pot so that the root ball won’t stick to the sides of the pot, lay the pot on its side at the edge of the hole with the stem lying across the hole, and with some tapping on the pot, carefully slide the root ball from the pot and into the hole, and pack looks soil around the papaya to keep it in a vertical position and loosely stake if for support until it can stand on its own. And water it.
We wish you the best and hope this helps.
In the Love of the Lord,
Frank and Mary