to be chafoin wrote:I'm (re) asking about the size of these vegetables. A pipe ?
you mean the size of the plant I guess ... quite invasive especially the pumpkin, leave at least a meter between each foot and you can orient the stems as they grow to concentrate them in the area that you reserve them otherwise it will "run" everywhere.
you can cut melon and pumpkin, but even without a specific size, you will have fruit.
besides the size is not so obvious, at the beginning it is quite easy when the plant is small but when it becomes a tangle, I drop the size and I let it go and I have beautiful fruits;
let's say that by pruning, we direct the sap towards the fruit which gets bigger