Urinating on my Tomato Plants

Posted on Sep 23 2009 - 4:00am by Mike Lieberman

There’s been a lot about urine in the news lately. Juan Manuel Marquez was saying that he was drinking his own urine leading up to his fight with Floyd Mayweather.

As fascinating as that story is, the story that piqued my interest even more was the one about urinating on your tomatoes and how it can help to give you fruits four times larger.

I decided to give it a go and urinated on my cherry tomato plant on my fire escape garden. Don’t worry before I started, I looked and gave a yell so no one got hit with some unexpected rain.

According to the research done by the Finnish team, it’s actually a mixture of urine and wood ash that is the ultimate eco-friendly fertilizer. I just used my urine.

  • shawna88

    LMAO! Love it! Plus the tomato shot is even better!

  • Mike Lieberman

    Thanks. It's all about experimentation.

  • http://twitter.com/michaelnolan Michael Nolan

    You're such a freakin' rockstar. Love ya, bro.

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  • Mike Lieberman

    Haha. Thanks Mike. Figured it was worth a shot.

  • http://earthmother-intheraw.blogspot.com/ EarthMother – In The Raw

    LOL, how nice of the upstairs neighbor to catch that shot!

    Four times larger, heh? So, have the cherry toms turned into beefsteaks?

  • Mike Lieberman

    LOL. Not yet. Need to nourish them some more.

  • focusorganic

    Just an excuse for public urination *tsk tsk*


    It'll be interesting to see if it works!

  • http://twitter.com/bike4myLIFE bike4myLIFE

    That's awesome! Gardeners add animal waste all the time to their gardens, so what's so different if we add our own? Go humanure!

  • Mike Lieberman

    Since I left college, I've been looking for excuses. Should've grown tomatoes years ago.

  • Mike Lieberman

    Word up. I'm down with that.

  • UncleB

    Lemme see ya do the solids thing, faint heart! I dilute mine about three parts water to one urine, not to burn tender roots and chutes! It works great! France has done it for centuries, China even longer, and guess what! It works very well.Look on Google, see the large green rings around Asian cities? They buy and sell the stuff, fight over collection rights, and don't always pre-treat solids giving way to parasite outbreaks from time to time, and all preventable! America must learn to bio-gas all its humanure to fuel and topsoil building fertilizers, radiated to safety standards, before it is too late and we start getting sewage residues in our drinking water, and spoil all our lakes, rivers and seashores, but in a corporate world the question is, as always, “Who pays”? And nobody steps up to the plate! Time methinks for a socialist legislation, making everyone who Shiites pay, and in America, everyone Shiites! P.S. Oslo, capital of Norway runs buses on biogas from sewage as we speak, and pay smaller fuel oil bills for their efforts, see web for details!

  • http://www.weblinkbuilders.com/ Link Building

    I hope you wash them first! I suppose you it's a good source of urea for the soil :)

  • sustainableecho

    Lemon trees love it too!

  • Mike Lieberman

    Wow not really sure how to respond to that one. Thanks for the comment though.

  • Mike Lieberman

    Unfortunately, no lemon tree on the fire escape.

  • Susan

    This is truly a brilliant idea. No toilet seat to put down. Doesn't matter if you miss. No one has to clean up after you…

    Wish I knew about this when my 4 sons lived at home.

  • Mike Lieberman

    Thanks for the comment Susan. Well the people down below might care. Luckily no one was hurt during that photo.

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  • max191

    I had been looking for this product. Finally I found it in your blog. Thank you so much for the information
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  • http://www.dinnergarden.org/ Holly Hirshberg

    I have been reading about this too. Did it work?

  • Mike Lieberman

    Too early to tell at this point. Might've done too late in the season, but no harm was done.

  • Name

    If you pee on your compost when you first start it up it will compost way faster. Gross but true.

  • Mike Lieberman

    Interesting. I'll have to take that into consideration for next spring. Thanks for the tip.

  • herbfella

    Hey Mike,
    Dig your style buddy.
    Gonna give it a go on my roma's this season and let you know if I end up with prize winners.

  • Mike Lieberman

    Thanks. Def keep me updated.

  • http://herbfella.blogspot.com/ Ryan (@HerbFella)

    Hey Mike,
    Dig your style buddy.
    Gonna give it a go on my roma's this season and let you know if I end up with prize winners.

  • Mike Lieberman

    Thanks. Def keep me updated.

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  • Mimi

    I hate to tell on something that has embarrassed me for years, but my mom has always did a combo of urine and something else (?)…I wasn’t listening…yuck. But, she won her neighborhood YARD of the SEASON every year! Wonder what her secret is? :)

  • http://twitter.com/calkundera Joseph Rice

    mike, if i’m outside and need to pee, i just head over to the compost pile and let it go. i would think there are excess minerals in urine that would be beneficial to the compost pile.

  • http://www.UrbanOrganicGardener.com Mike Lieberman


  • http://www.UrbanOrganicGardener.com Mike Lieberman

    Don’t worry. I won’t tell 😉

  • http://twitter.com/fgplex FahrenheitGoogolplex

    Nice one Mike. Actually urine is a rich source of the nitrogen plants need to grow. Yellowing leaves is usually a sign of nitrogen deficit. Another way to add it to soil is through coffee grounds or to a lesser extent, tea leaves.
    The only danger with direct hosing is that the ammonia may burn the plants. Churning it into compost is a workaround. I know that’ll work great with your indoor composter 😉

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    Thanks for the advice!

  • Edward

    I piss in my compost pile(s) to take away the need for flushing water down the toilet, and it really helps speed up the process too. I’ve done that with tomatoes in the past, except I went in a gallon jar and diluted it with 8X water – 1X urine.

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    That’s what’s up!

  • Anonymous

    Wanna’ see your skin glow? Nature’s toner. And if I’m really sick, I already know what will heal me. It’s all within. Call me when the tomatoes are ready. :-)

  • http://www.UrbanOrganicGardener.com Mike Lieberman


  • http://naturalfamilytoday.com/ Vanessa Pruitt

    Love it. Only for the truly dedicated gardeners… :p

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    That’s how I roll.

  • http://visionaryculture.com/ Activate

    So… how big are they? 😉

  • http://www.UrbanOrganicGardener.com Mike Lieberman

    Wouldnt you like to know?

  • Guest

    Did it help? How often did you pee on them? This is fascinating.

  • oscar5261

    You guys probably masturbate on your plants too. NO ORGANIC S— for me!

  • BeniBoy

    if i pee on a repulican…will he grow greener?