Typically in August/September I get vigourous courgette plants but if I don't catch and harvest the fruits quickly I end up with enormous useless marrows.
At the same time my pumpkins are doing the opposite, that is growing to size of large oranges then stopping and sulking.
I want small courgettes and large pumpkins but I get the opposite. It's perverse! They're basically the same thing aren't they?
Is there any way to encourage courgettes to slow down?
More importantly - how to boost pumpkins? The pumpkins are being grown in tons of horse manure so they're not hungry. I'm wondering whether I'm putting them in too late, and they're running out of daylight by August/September.