Why does this Pumpkin have Two Different Sides?

Question

I planted some pumpkin seeds from a fancy (and tasty) pumpkin I bought last year, I think was a glass slipper pumpkin (https://outstandingseed.com/shop/stacking-pumpkins/glass-slipper-f1-pumpkin/).

The resultant pumpkins look odd. The top looks like a proper glass slipper pumpkin (kind of a muted pinky-orange and green). The bottom is almost a gray-white. It started off more white and that part shrunk a bit...I kept thinking the white part would grow smaller, but it just seemed to stop growing.

Is this some condition that happens with pumpkins? It looks like a ghost pumpkin stitched to a glass slipper pumpkin.

I have two pumpkin plants in the same very large pot - they both have pumpkins that look like this.

Answer 1

You grew a Turban Squash by accident. But how?

Must be an F1 surprise. With F1 hybrids, two parents produce uniquely desirable offspring for one generation alone. A mule is an example (and always a sterile male). The seeds of the tasty F1 hybrid pumpkin you bought have gone on to reflect one of the original F1 parents—unpredictably.

Seed catalogs may list a cryptic "(F1)" to signal all this, that saving crop seeds in farming tradition will produce unexpected results next season. Heirloom seeds, aside from a fuller taste, do not enter the F1 world of mystery.

Remember. the gardener plans and Nature improvises.