Dear Hank & John

420: The Plant Episode


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Does John want to be a corn or pea plant? If we were able to put enough plants on Mars, could they produce enough oxygen for us to be able to breathe? Is there a scientific definition of what constitutes a weed? How do purple leaves work? Should I tell my friend she’s been watering a fake plant for seven months? …Hank and John Green have answers!


If you're in need of dubious advice, email us at [email protected].


Join us for monthly livestreams at patreon.com/dearhankandjohn.



See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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Dear Hank & JohnBy Complexly

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