While it is possible to store Plumeria seeds inside the seedpod for a short period, it is generally not recommended. Once the seedpod splits open and exposes the seeds, it is best to collect the seeds and store them separately. Storing seeds inside the seedpod for an extended period can lead to mold or fungal growth, which can compromise seed viability. After harvesting the seeds, allow them to dry thoroughly in a cool, dry location before storing them in an airtight container. Properly stored Plumeria seeds can remain viable for several months to a year.