Warren, are you sure that is really breadfruit (Artocarpus altilis) and not breadnut (Artocarpus camansi)? Where in PR did you get it? Unfortunately a lot of the folks in PR don't seem to get that there is a BIG difference and call both of them breadfruit. But both are very different fruts. The leaves on your plant look to me like camansi. The good news is that camansi is easier to grow i think.
Oscar
Oscar
I lived in Puerto Rico for years and seedless Breadfruit is always called "Panapen" or "Pana". Seeded breadfruit is called "Pana de Pepitas". which means Breadfruit with seeds. I have never heard anyone call seeded breadfruit as "panapen". This fruit is very popular all over the island and people know the difference. Islanders mostly eat unseeded breadfruit and the unpopular seeded one is mostly fed to animals!
Warren, if it said "Panapen" on the label, I would bet that it is Artocarpus altilis but there is no 100% guarantee. I can ask the folks at Eneida for you!
NR
Problem is that Puerto Ricans often refer to both of these fruits simply as "pana". Also the full common name in Puerto Rico is confusing. Panapen means breadfruit with seed. But the camansi is not a breadfruit with seed, it is a totally different fruit. Here we do have breadfruit with seeds, that is Artocarpus altilis that have some seeds in them. It is better to call the camansi by that name "camansi". That is the name used here by Filipinos for that fruit. I noticed this same confusion even in articles in CRFG Fruit Gardener magazine. This lady Bev who did the 3 part article on PR, in her first article she has a photo of an immature fruit hanging on the tree which she calls a breadfruit, and has it labeled as A. altilis, but that photo was clearly A. camansi. I meant to write in to point out that error, but never got around to it. But i noticed that nobody else picked up on that big mistake either.
The Jardines Eneida nursery is a good nursery and they probably have the plant Warren got labeled correctly. Most breadfruit types don't have that type of leaf he showed, very narrow and thin, that is usually indicates it is camansi. But some very few breadfruit types have immature leaves that look like that. If that plant's leaves get wider and less indented as it matures then can be sure it is breadfruit. if not it is a camansi.
So what is the big difference? Breadfruit has a lot of 100% edible pulp inside. The camansi is almost 100% seed inside when it is mature. If you want to eat some pulp you have to pick it very immature. Only Filipino people bother to eat camansi here.
You can see a photo comparing camansi on left and breadfruit on right:
Unfortunately don't have a photo comparing the difference in shape of the leaves of the two species right now or you could see what i mean.
Oscar