Well I have never grown them and until today I thought they grew in the sea, like sponges but it appears they grow like cucumbers, so perhaps they'd do well in a greenhouse. Good luck with them.

Treat them exactly like cucumbers, except they are more heat tolerant--probably not an issue in the UK! : )
If you want, you could sacrifice a few young ones to the kitchen: when less than 20 cm long, they make good cucumber or okra substitutes.

Gosh isn't that interesting - had no idea you could eat them!