You're right, no link at all to drugs. I guess in Dutch there's no need to have a camouflage word for weed/marihuana/cannabis since nobody cares if you talk about it openly. :)
But I agree with the first comment, it is a funny sentence, even more without the link to drugs. Who on earth would pay with something so common, innocent and worthless (after it's cut) as grass. :)
Ok, well it's a bit different than the Netherlands then. But still if that is your way of thinking, then it's illegal as well in the Netherlands, since that's the way it officially is, but for decades the policy simply is not to prosecute or confiscate small amounts. ;) And I'm not sure how the coffee shop permits look like…but I guess it comes down to "if you follow these rules then we condone you doing this illegal thing".
But clearly the condoning thing isn't the weirdest part. That is that it is illegal (and not condoned) to grow the stuff. In other words, by definition coffee shops have to do creative bookkeeping, because weed and hash "drop out of the sky" (are bought illegally by the coffee shop) and turn into this thing that can be sold (because it's condoned) to individuals. So the whole policy creates criminality (criminals grow the weed and are actively prosecuted). It's ridiculous that the growing for the purpose of selling to coffee shops isn't condoned similarly to how coffee shops themselves are condoned (still needing to comply by all kinds of rules), and this has been going on for decades...
I don't think that's right. I was just watching this:
At 7:20, a senior policeman says: "Want, in tegenstelling tot wat velen denken, is cannabis niet togelaten. Het is nog steeds strafbaar om cannabis te bezitten en te gebruiken. Maar er is een tolerantie, minder dan 3 gram voor persoonlijk word getolereerd. Het is te zeggen het parket zal niet onmiddelijk vervolgen. Maar het blijft strafbaar en daarom nemen wij het ook altijd in beslag."
So you're not alone in being confused. There's no way "a few plants" wouldn't exceed 3 grams, and there's a difference between between it being allowed, and them confiscating it but choosing not to prosecute you for a small amount.