I'm a complete novice, but have had success for the past 2 years growing them in very large pots. I've grown (I think) black beauty, a regular, green courgette along with a round variety called de Nice. This year, I'm also having a go at a patty pan type.
I agree with plenty of water and feeding. The 1st year I did end up with a glut, but found inventive ways to use them up. Other than giving to neighbours and family, I made courgette cake, brownies and pickled courgette which is lovely with cheese and cold meats https://lostinfood.co.uk/quick-courgette-shallot-pickle/ I also like them steamed, or grated and steamed with parmesan grated over the top.
I always grow a couple. but like some have already said, they can grow massive and marrow size, keep an eye out under the leaves for them hiding from you, the small young ones are the best.
Yesterday we ate one of my squashes from last year as veg at mealtime. It had been sitting on the kitchen windowsill since picking. There is still an overgrown 'courgette' there, which is gradually ripening from green to yellow. It too will get eaten at some point, a taste of summer in winter
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I agree with plenty of water and feeding. The 1st year I did end up with a glut, but found inventive ways to use them up. Other than giving to neighbours and family, I made courgette cake, brownies and pickled courgette which is lovely with cheese and cold meats https://lostinfood.co.uk/quick-courgette-shallot-pickle/
I also like them steamed, or grated and steamed with parmesan grated over the top.
One thing to be aware of is a rare, poisonous occurrence when seeds are cross bred. Again, I'm far from an expert, so might be corrected, but I was told to always check your home grown courgettes before eating. Cut the end off and put your tongue briefly on the open end. If its extremely bitter of foul tasting- do not eat it! https://www.foodsafetynews.com/2020/07/zucchinis-linked-to-rare-poisonings-in-england/#:~:text=Rogue zucchini seeds are suspected,such as nausea and diarrhea.