oh marrow, oh oh oh oh
Marrow belongs to the Gourd section of the Cucumber family and he was basically grown in the same way. Courgettes are only baby Marrows and are "picked on" while still small. The plants, especially Marrows, take up a lot of room at the bar. If you do not have a lot of bar stools to spare, just grow one of the Courgette varieties and towards the end of the season, allow a couple of the fruits to mature to full size Marrows.
Pests and Diseases
They are generally trouble free but slugs, Aphids and the Golden Virginia virus may be problems.