>First time I flew into Amsterdam it was dusk and I was mesmerized by the seemingly endless fields of greenhouses growing weed. Only years later (after telling everyone about it) did I learn they were actually growing produce :D

Lol - yeah the production of cannabis is not yet legalised in The Netherlands.

This is a great article on the Dutch greenhouse industry (unfortunately behind paywall): https://www.nationalgeographic.com/magazine/article/holland-...

>Dutch tomatoes have a reputation for being bland ("water bombs"), is making more flavourfull ones just product focus? Like picking the right varietal, picking them at the right time, delivering quickly, etc?

I've heard this before too. Maybe this was a thing at one point in history but it's not true any more. If you go into a supermarket today in Europe then all the tomatoes on offer will have been grown in greenhouses. The low-end stuff will have been grown in Spanish/Moroccan low-tech greenhouses (plastic tunnels). The higher-end stuff will have been grown in Dutch glasshouses.