Question: what is the difference between a zucchini and a marrow?
Answer: Courgettes are the baby fruit of several types of marrow, harvested when they are 14 x 4 cm long, the size of a cigar. Zucchinis are the fruits of the same plant harvested when they are 15 to 20 cm long. Marrows are the semi-mature fruits which have reached full size.