Monster in the greenhouse

[Spiderwmn]

This plant appeared this summer, I thought maybe I’d bought a courgette and forgotten but it has small pale green gourd shaped fruit.
i filled the bed with manure from a mix of animals and chickens etc so maybe it’s from some animal feed

Do you think it's some kind of squash?

It is a gourd of some sort, clearly. Let it do its thing, and then you can use the fruit for ornaments over Halloween.

A stray seed from compost is usually the culprit. A lot of squashes are F1/other hybrids but their seeds sometimes revert.

The gourd is only about 3 inches long and the end turns brown shortly after picking. So not appetising.

Sounds like either you’re picking too soon, or, if it goes brown before picking, that it isn’t getting properly pollinated

Personally I pull these out because they are rarely good fruits.

Especially if they are in the way.

A rogue butternut squash? This year I've got a chard plant in the greenhouse, last year a sunflower. I'm obviously a bit clumsy when sowing seeds. The butternut squash came from homemade compost. We now don't compost anything that has seeds in it.