I didn't see a label for this plant in the Bloedel Conservatory, but it's some sort of tropical that thrives in a humid environment (if anybody knows the variety then please let me know). Normally in Vancouver lush natural surroundings aren't for want, but the dead yellow grass everywhere illustrates that this summer has been dry as a bone.
Your BC Hothouse veg came from here, or a place just like this. At least I'm assuming that's what's being grown in the microclimate under those lights. After all, there is some logic to choosing a wise location for a covert activity, but we all know how that grow op at the Molson plant in Barrie turned out.