If you set up a grow op that takes up a whole room you might have to toss out a lot of plants. When you rent it is absolutely paramount that anyone that shows up be able to walk through every room without noticing anything. Even if you ask your landlord point blank and he/she says no problem you are not safe. I couldn't think of an easier way get a bunch of free weed. "Give me half or I will report you!" Stealth like Picasso said.

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"There's no money for your issues so long as we're squandering $50 Billion a year on the drug war"- Ben Masel