Interesting history on the passion fruit. Are they winter hardy, or do you start them from seed each spring?
The softer squash that you're talking about must be what we call summer squash, like a zucchini or yellow croke neck squash. I guess they are called summer squash because the need to be used shortly after picking, and don't keep into the winter. What we call winter squash have a harder outer shell, and when ripe will keep well into the winter. I still have some in storage that I piced last fall, and they are still firm and good.