If you have already grown a seed from any Collection and have acquired 5 duplicates of the same plant, you can trade your duplicates for a new seed pack from select regions:
Open the Nursery:
Tap the fourth icon at the bottom of your screen, then go to "My Nursery."
Select the Collection:
Open the Collection that contains the duplicate seed you’d like to trade.
Access the Trading Screen:
If you have already grown one seed of that plant and have collected 5 duplicates, tap on that seed to open the trading screen.
Trade for a New Seed Pack:
Tap the "Trade In" button to bring up the "Select a Collection Box" screen, where you can choose between three regions to receive a new seed pack. Finally, tap the "Trade" button.
Note: The seed you receive will be randomly selected!
