420: The Plant Episode
Dear Hank & John20 Elo 2025

420: The Plant Episode

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 hankandjohn@gmail.com.


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



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Jaksot(436)

409: The No Bummer Sleep Spectacular

409: The No Bummer Sleep Spectacular

Whatever happened to Ecogeek? If humans colonized Mars, would there be a pope of Mars? Are certain types of protein more effective for humans? Did AFC Wimbledon get… good? How do elephants walk around...

19 Maalis 202549min

408: The Green Brothers Often Are Wrong

408: The Green Brothers Often Are Wrong

Have Hank and John’s opinions of Elon Musk changed over the years? How do I not wallow in despair after losing my job? How do you start writing someone’s biography? How does file compression work? …Ha...

5 Maalis 202553min

407: Concepts of a Bubble

407: Concepts of a Bubble

Is it socially appropriate to cover my ears and go “ahhhhhh?” Where did all the water on Mars go? How do I deal with friends who disrespect my favorite singer? Why are there perfectly uniform bubbles ...

19 Helmi 202548min

406: Science Spectacular (w/ Deboki Chakravarti!)

406: Science Spectacular (w/ Deboki Chakravarti!)

Can gasses other than oxygen be fuel for fire? What happens to your internal organs after giving birth? How does copper work? How do other animals deal with umbilical cords?  What would happen if we g...

29 Tammi 202554min

405: Gettin’ Real Real

405: Gettin’ Real Real

How do you plan for the year ahead? Where is John going on tour? Why do my hands clap louder when freshly lotioned? How do I deal with getting a bad grade? …Hank and John Green have answers! If you're...

15 Tammi 202546min

404: Die on Tuesday

404: Die on Tuesday

Is the “Indianapolis Cocktail” actually served in Indianapolis? What do I do with my life? How do I entertain my friend in the hospital? What’s up with the lyrics in "It's the Most Wonderful Time of t...

8 Tammi 202544min

403: Yeah Inflation

403: Yeah Inflation

If I make two cups of tea with the same leaves, am I ingesting twice the caffeine? Should I get a “This Machine Kills Facists” laptop sticker in 2024? When did starlings show up in America?  What shou...

18 Joulu 202446min

402: Alfred Australia

402: Alfred Australia

What do Hank and John look like?  What do Americans know about Australia?  Why is there not a cure for cancer? What do I do with having too many books? What’s the difference between a non-profit and a...

4 Joulu 202447min

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