cover of episode The Fascinating History of Dandelions

The Fascinating History of Dandelions

2024/11/14
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Dandelions, often dismissed as weeds, have a rich history and surprising qualities. Known by various names like puffball, blowball, and monk's head, these resilient plants have been valued for their medicinal and edible properties for centuries. Beyond their bright yellow flowers and unique seed dispersal mechanism, dandelions hold secrets that challenge their negative reputation.
  • Dandelions have a 30-million-year history and were intentionally brought to North America by colonists.
  • The dandelion's pappus creates a vortex for efficient seed dispersal and protection in water.
  • Dandelions are edible and have been used in cooking and beverages for centuries.
  • They exhibit photo nasty, opening and closing with the sun.
  • The number of puffs to clear a dandelion's seed head is believed to tell the time.

Shownotes Transcript

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Hey and welcome to the podcast. I'm Josh and there's Puffball Chuck and there's Blowball Jerry and they like to call me Monk's Head and this is Stuff You Should Know. Did you get those references?

Uh, sure. Okay, well, we should probably explain them to everybody else because they probably think it's an in-joke, but it's not at all. Number one, because we're about to share it with you. Number two, it's not really a joke. And number three, those are alternate names for dandelions. That's right. And we're going to be exalting the dandelion. Yeah. Probably say a lot of times.

how great we think it is. Yeah, sorry if you hate dandelions. Yeah, how it's unfairly maligned. And we want to thank Sarah Andrews from Idaho because Sarah is a listener who sent this in. Nice. Very nice. Thanks a lot, Sarah. Every time I hear Idaho, I'm reminded of that silly T-shirt that said, Idaho, Udaho.

Do you remember that one? I never saw that one. What was that one? There was a company called like Dangerous T-shirts or something like that. And they had like, man, they were killing it with the crazy T-shirts for a while in like the early 2000s. Was that like instead of saying Coke, it would say, you know, poke? Or cocaine? Yeah. That kind of thing? Yeah, kind of. Sometimes more original than that. But yeah.

They were coveted for a little bit among people who liked Incubus and stuff like that. I couldn't name an Incubus song, so that's not me. Okay, so let's get back to Dandelions. I don't know how we ever get off track. It's kind of strange, but it happens from time to time, and it just happened, Chuck. So let's stop it from happening right now. Right, because Dandelions, as you will see, have had a long, rich history of

that we're going to talk about in depth as a medicinal plant, as an edible plant, as a wonderful pollinator. And it was recast as a villain, as a weed to get rid of. But you need only look at the history of the dandelion, the fact that it was brought to North America by colonists to kind of underscore the fact that we wanted the dandelion here.

Right. And it's important to say that they brought it here on purpose. I saw somebody point out like this. It wasn't it didn't hitch a ride. It was like purposefully brought here. And the idea that dandelions suck is a really recent development, especially compared to how long people valued and prized dandelions. I just find that fascinating. Yeah.

For sure. This thing is about 30 million years old, native in sort of Atlantic Europe all the way to Siberia. And in the Northern Hemisphere, you're going to know a dandelion because between March and October, you're going to see these beautiful yellow flowers. You'll see some what's called a rosette, which are these very short level ground stems that grow in a circular pattern.

And then these little slender green hollow stalks, you know, 2 to 20 inches. But usually, at least around here, the dandelions are, I don't know, like 8 inches. Yeah, that seems about right. That's my experience as well. Yeah. Yeah.

So one of the other really impressive things about the dandelion is if you look really closely at the flower, each individual petal has a little what becomes the part of the puffball when the flower seeds. It already is attached. And that thing is called the pappus. And at the bottom of the pappus is the seed. And the pappus itself is like this parachute, essentially, that keeps the seed aloft and

And research into, I saw papi, but I like papuses as the plural. Ooh, I love papi. So it's found that they're actually phenomenal at keeping the seeds aloft. Like they create a kind of vortex that until it was seen when they started testing papi was thought to be impossible. Yeah.

Yeah, and that vortex not only makes it travel up and out and away in such a way that if it was shaped any differently, it wouldn't do that. But if that little thing lands on water, that same vortex is going to form a little air bubble around it and protect it. Yeah. One of my prized possessions is this dandelion puffball encased in resin. And it's like the real deal. And I've never understood how it worked, but it turns out that if you actually take a dandelion puffball and actually not just –

put water in it, but submerge it in water, the puffball does not, it doesn't collapse. Isn't that nuts? It's amazing. I think so too. So that's just one of the many amazing things we're going to reveal today on Stuff You Should Know. Did I wander into the wrong show? No. Well, we should tell everybody it's 10 a.m. and we usually record at 1, so I'm a much different person at 10 a.m. You're a news anchor, apparently. Yeah.

So I mentioned yellow. They're not always yellow. They can be orange. They can be white. They can be kind of purpley peach. They open in the morning and close in the evening, which is giving them the name the shepherd's clock. And they do that to preserve pollen and keep that pollen safe for the next day, which also makes it, and this is one of my favorite words, a photo nasty. Oh, that's a great word.

Yeah. Plants open and close with the setting and rising of the sun. Yeah. It's called photo nasty. Huh. I saw like a time lapse. Actually, it wasn't a video. It was just a series of photos of the dandelion flower opening and closing over the course of the day. I ran across a word from researching this that I'd never heard before that I absolutely love. Dandelions, like you said, are edible. They're used in cooking. They're a culinary plant.

which makes them a pot herb. One word, a pot herb. Isn't that awesome? What a great homey little, like I just imagine, you know, hobbits using that word. Yeah, hobbits and my wife. Oh, does she call them pot herbs? You've heard that before? Oh, yeah, yeah. She's, I mean, I told her we were talking about dandelions today, and she was just like, oh, are you going to talk about this, this, this, this, this, this? Right. She's like, oh, the famous pot herb? Yeah.

It's also another kind of clock. I already mentioned the shepherd's clock because of opening and closing at sunrise and sunset. But those little seed heads, they're called dandelion clocks. And that is from the old, you know, you make a wish when you blow the dandelion and you scatter those seeds. It's sort of a long, rich childhood tradition. But apparently the number of puffs it takes to empty that thing is what time it is. So it can – I haven't tested this out. I don't know if this is –

Rock solid science, but that's a sort of a thing. That's pretty neat. Yeah. And one other thing about those papuses and the seeds that are attached to them, there's a longstanding, I guess, kind of urban legend or maybe rural legend that they can travel up to 100 kilometers, 62 miles. Yeah.

And that does not seem to be the case, even though you'll see that stat absolutely everywhere, including some legitimate places. But Kyle helped us with this, our British buddy. And he found that a 2003 study, which is the most recent you can find on this, is that just one in 7,000 Papuses travels more than one kilometer. So just leave 100 kilometers out of the whole equation.

Yeah. And Kyle told us that because he's from England. But for our North American listeners, we're talking 320 something feet if it's 100 kilometers and about three and a half feet for a meter. Yeah. And apparently 99 and a half percent of all Pappas's land just within 30 feet of the parent plant, which is also 10 meters. So, yes, if you ever hear that a Pappas can travel 100 kilometers, you can be like, that's wrong. What you just said is wrong.

I think like one did and they framed that. Maybe that's the one you have in Amber. Yeah. It's like that first dollar bill you make as a business. You put it into Amber.

Yeah. There's also a cool adaptation where after they flower, that little hollow stalk that the flower sits upon goes limp on the ground and is just sort of hiding there away from birds and stuff. And when they ripen up, they jump back up again and they're like, here we are. That's pretty cool. I think so, too. Do you want to take a break and come back and talk about where they got their name? Let's do it.

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So, Chuck, dandelion, I've never stopped and considered why it was called that. But it turns out that whole, that lion at the end is actually a giveaway for where the name came from. It's French for lion's tooth, dent de lion. Pretty neat. I love that. The reason they call it that is it's a reference to the deeply serrated, jagged leaves. I guess somebody was like, that looks like a lion's tooth. And they lived in France, and that's where they got the name dandelion.

Yeah. And it's also if you look at the the botanical name, it really gives a good indication of what it was being used for back then. The genus name is Taraxacum. And there are a couple of explanations here. I kind of like the second one. The first one is a Greek word for disorder, which is ataxia. But it's also could have come from Arabic for bitter herb.

which is Torexagog. And then when you combine bitter herb with the species name, which is, how would you say that? Aficionale? I don't know. Aficionale. That is a word for monastery storeroom. So a bitter herb in a monastery storeroom basically is telling you, hey, we use this plant in a very productive way. Yeah. The whole disorder thing is totally insensible if you ask me.

Yeah, I agree. So one of the other great things, so humans use dandelions, as we'll see, in a lot of different ways and have for a very long time. But our animal friends love dandelions, too. Those flowers, even though they look kind of flimsy, if you think about it, they're rich in nectar, packed with it. So bees, butterflies, basically any kind of pollinators love dandelions.

Like you said, the reason the stalk falls to the ground after flowering and as the seed heads are developing, that's because birds love the little dandelion seeds. And one of the other things that's important about them too is they basically...

flower and seed almost around like the whole year, depending on where you live. So at times where there's not a lot of food sources for birds and pollinators, the dandelion's there to kind of keep them going through the, say, you know, late fall. Yeah, yeah. And I think it's one of the first guys to get going in the spring too, right? I believe so, yeah. So we're going to get more in detail about, you know, how it's been eaten, but...

Well, actually, let's save all that. Let's just tease it then and say it has long been eaten and is now being eaten again due to the sort of foraging movement happening in the culinary world. That's a great tease. I think that kind of kicked off in COVID when people are like, well, I can't go to the store. What can I eat that's in my backyard? I'll try dandelions. I've always wondered what they taste like.

So, yeah, nice. So I think we said probably a couple times that people have been using dandelions for all sorts of reasons, not just as pot herbs. For a long time, one of the earlier mentions we can find was in the Arabic world, a couple of physicians named Raziz and Avicenna both wrote about some of the properties of dandelions and dandelion roots back in the 10th and 11th centuries. Yeah.

And most of what they were talking about was its use as a diuretic. And medicinally speaking, that's probably the most famous property that dandelions have is they make you pee. And in fact, there's a couple of names that refer to that, depending on where you are, for dandelions that refer to the fact that they make you pee, right? Yeah, that's right. In France, they're called the, apparently more than they're called the dentelion, they're called the pissenlet.

which means, you know, pee-pee in the night. And a folk name in England is a piss-a-bed. For the same reason.

Yeah. And, you know, apparently it's all the potassium in there that's going to stimulate urination. And, you know, because of that, diuretics are used for a lot of things. And, you know, medicinally now and historically, if you want to work something through your system and pee it out, dandelions is a good way to make that happen. Yeah. And very famously in the American Midwest, they're called pee pee weeds. Oh, that's that's totally made up, I should say.

Oh, that's not true either. No, I just made it up. Oh, OK. I got you. I got you back for the what was the lateral gene transfer gospel group that you got me with? Oh, geez. I don't even remember now. It was that. But I've only gotten you once. The score is Josh 3000. Oh, man. There was a 16th century book, too. What was the name of that one?

People call it Garden of Health because the full title of it is Containing the Sundry, Rare, and Hidden Virtues of All Kinds of Simples and Plants, Together with the Manner of How They are Used and Applied in Medicine for the Health of Man's Body Against Diverse Diseases and Infirmities Most Common Against Men, gathered by the long experience and industry of William Langham, practitioner of physics.

That's the actual title of that book, which is why there's like, yeah, we're just going to call it Garden of Health. I mean, Garden of Health really says what that says. I know. He didn't need all that extra stuff. That's like the introduction, I think. He put the introduction in the title.

Yeah, that's a little, did it say the end at the end? Pretty much. This is from, like I said, the 16th century, and it talked a lot about, you know, all the kinds of things they thought it could help back then, toothaches, fevers, depression, even baldness. But they also talked about growing it alongside other vegetables and

and herbs in the garden, and you dug up this kind of cool fact. It's ethylene gas that they release. So if you actually grow dandelions or have dandelions growing near fruiting plants like tomatoes, they're going to ripen faster. Yeah, isn't that neat? Super cool. Yeah, we're going to cover a lot of actually pretty cool little benefits, I guess, that they provide. But let's keep going with the tradition of using them medicinally, shall we? Sure. Sure.

There's a guy named John Gerard who wrote a book in the 1630s, and he's like, hey, I want to contribute to this too. I've found that dandelion strengthens the weak stomach, which is important because actually if you use the roots of a dandelion, it contains a lot of inulin, which is an important prebiotic for gut health. So John Gerard wasn't just whistling Dixie. No, not at all. It turns out they have more vitamin A than spinach.

more vitamin C than tomatoes. They've got a ton. We already mentioned potassium, but also a lot of calcium, a lot of iron, and then a lot of words that I can barely pronounce that you found that it's packed with, starting with flavonoids. That's the only one I had heard of. It has triterpenes, sesquiterpenes, phenolic acids, sterols, and coumarins.

And they bestow things like antibacterial, antioxidant, anti-inflammatory, hepatoprotective, and anti-tumor properties. And you dug up a lot of ways that they actually help health, right?

Yeah. So, I mean, we can talk all day about like the ways that people thought it would help you back in the 16th century. But people might poopoo something like that. But there have been modern studies. I'll just give you a few examples. There was a study from 2015 in Canada that reported that dandelion extract can block ultraviolet UVB radiation when applied to the skin.

It can also irritate the skin, so don't necessarily just take dandelions and start rubbing them all over yourself at the pool. There was a 2016 review of studies from a university in Denmark that suggests that dandelion extract actually stimulates pancreatic cells to produce insulin, so it could potentially help control blood sugar. Right.

And what about, there was one on the liver too, right? Yeah, I said it was hepatoprotective, which means it helps the liver. And actually it goes in and like just kicks butt in your liver. It slows the progression of fibrosis, which is scarring of the liver.

And the extract actually inactivates the cells that cause fibrosis in the liver. And essentially your liver, as everybody knows, it can regenerate itself. Once the dandelion extract has gone in and stopped the fibrosis, the liver can heal. So it's incredibly helpful with protecting the liver from damage. I mean, that's nuts. It's almost like it was designed to do that for the liver. It's that effective. Yeah.

I do want to mention the cancer one because Emily had a very funny, very Emily line. There was a 2020. I mean, I would do that lately. Twenty twenty twelve. I did that. I did that a lot. Yeah. What is happening? I don't know. It's a study from the University of Windsor in Canada about dandelion root extract can induce apoptosis, which is cell death and pancreatic and prostate cancer and test tube in their cells in the test tubes.

potentially preventing their spread. So this is something Emily knew. And this morning she was like, yeah, it's so like modern American at the very least to take something that could actually help fight cancer and spray chemicals on it to kill it. It caused cancer. Right. Yeah. She stormed out of the room. Sometimes we have to learn the hard way, but it is it is reassuring that things seem to be coming full circle. You know what I mean?

Yeah, I feel like people are getting a little more eyes open to stuff like that. Yeah, they're getting on board the dandelion train. So one thing about those studies that you said, like they're essentially confirming to our modern tastes what the Chinese knew all the way back in 659 C.E.,

people like Nicholas Culpepper knew in the 18th century. All these people wrote about this stuff and just how effective it was. And then now science is going in and saying, these people were right, and here's how it is effective. I think that's pretty cool. And in part because of that, the dandelion is being rehabilitated. But first, I think we need to mention, you said that it came by North America.

I piped up on purpose, I think more than once even, I was so excited about that. And it's possible it was actually on the Mayflower. It arrived that early. And they think that because of plant migration, as we talked about before, the dandelion may have spread ahead of Europeans as they entered further and further into the North American continent. And so Native Americans that they encountered may have already been using dandelions in some of their medicines.

Oh, yeah, absolutely. They were drinking it in tonics. They were boiling it with fatty meats, which sounds disgusting. It does. It really does. Unless you're talking about something like collards with like ham hocks or something. That sounds OK. But in this case, I imagine a pot of boiling water with a skin of fat just bubbling at the top and some dandelion leaves floating around in it.

And we'll talk about more ways you can eat it, but it's long been used in like cordials and beers like the dandelion root. You can grind it up and use it as like a coffee substitute, kind of like chicory.

So, you know, people were using it for medicine. They were using it for old kinds of folk remedies and foods and things, largely because, again, it was everywhere. It grows in not very good soil. They can it's considered a perennial because they can live well because, like you said, they're going to grow in year round. But they're not.

They can live for more than 10 years if you don't mess with them and kill them. Yeah, I think that's pretty cool, too. One of the other things I saw, there is a book called The Economical Housewife from the 1850s that it might be the first recipe for dandelion wine. And people still make that today. And it's actually super easy. You just take some dandelion flowers, some water. Eventually, you add some sugar and some lemon, let it sit for a couple of weeks.

strain it out and then let it sit for another week and age. And you've got yourself some dandelion wine and it sounds deliciously easy.

Or maybe easily delicious, one of the two. But I'd love to try it. Have you ever had dandelion wine or dandelion beer or anything like that? No, not at all. I mean, it's definitely a thing. Ray Bradbury had a novel called Dandelion Wine from 1957. So it's something that's been enjoyed all over the world. In France, they use it sometimes. They'll take the leaves and blanch them and spread them with bread and butter. Like, it sounds like if there's not a...

a Brooklyn restaurant serving dandelion toast at this point. Yeah. What is happening in our world? I don't know. It sounds like fairy toast, like the Australians love, but with dandelion leaves instead. Yeah. It's also, you know, just a salad, a salad green component. And like we said, it is very bitter, but it's used in all kinds of salads. Sometimes it's the only kind of leaf used in a salad. Sometimes it can be mixed in with other things. But in France, they have one called the Salade de...

Piss and Litz from that original name that's got bacon in it and dandelion leaves. It just, you know, sounds pretty good to me. Yeah, apparently that was a common dish during the Depression in America, too, because it was just cheap, you know? Yeah. And it sounds delicious, too. I say we take a break and we come back and talk about another surprising use of dandelion that I hadn't heard of until this. But you probably did because of Emily.

No, I delighted her with that fact as well. So we'll be right back. Black Friday is coming. And for the adults in your life who love the coolest toys, well, there's something for them this year too. Bartesian is the premier craft cocktail maker that automatically makes more than 60 seasonal and classic cocktails, each in under 30 seconds at the push of a button.

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♪♪♪

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Get the facts. Talk to your doctor to learn more about approved treatments and visit treat your psoriasis dot com. That's treat your psoriasis dot com. This message is brought to you by UCB. All right. So Josh said that he hadn't heard of this. Cool fact. I hadn't heard of it. Emily hadn't heard of it.

And I think it may be the fact of the podcast, but dandelions are a source of natural rubber. Pretty cool. Full stop. I would take issue with that. I think it has to do with the vortices over the pappy or the fact that they're potterbs.

All right. This one's good. It's up there. Maybe they're all tied for first. I don't know. Hey, that means we've got a good topic if there are several competitors. Yeah. And so not just any dandelion produces rubber or latex that can be turned into rubber. A specific type of dandelion, they figured out the Kazakh dandelion, which is native to the Eurasian steppes.

How'd you like that? It's also called the Russian dandelion here in the United States. That specific one puts out enough latex that it gave rubber trees a run for their money during World War II, which we've talked about many times. America and Britain were like, we need more rubber for the war effort. And the Japanese control essentially all of the rubber supply. We're at war with the Japanese, so we better come up with something else quick.

Yeah, so they literally started screening like thousands and thousands of plants. And I guess they were like, hey, if the rubber tree can grow rubber, there's got to be something else out there. The Soviets are the ones who said, try this Kazakh dandelion. And because of shortages during the wars, they said, here, here's a bunch of seeds. And they sent a bunch of those Kazakh seeds, the Soviet allies at the time in the 1940s,

And ultimately, we use some of it. Russians, Americans and Germans did produce rubber from dandelions. It's very hardy. It can be susceptible to disease, though, depending what kind of disease. But also grows everywhere and serves as a pollinator and it doesn't deforest things. So the big problem, though, and I know everyone's like, oh, my God, is this the miracle we've all been hoping for with rubber? Mm hmm.

It just doesn't yield as much as the Russians said it did. And so it's not economically viable as long as the real rubber tree is around. They released some paper that overstated how much rubber can be gotten from the dandelion because they wanted to sound like big shots. Yeah. So the reason why we didn't just keep going with dandelion rubber research is

in trying to figure out how to increase yields is because in the meantime, people figured out we could make synthetic rubber from petroleum. It was almost as good as natural rubber, and it certainly was a good enough substitute, and we could just make batch after batch after batch.

rather than have to try to yield it from dandelions. So that fell to the wayside. And then by the time World War II ended, we had access to natural rubber supplies from the Southeast Asia, I should say. And so all that kind of put dandelion rubber on the back shelf. But in the, what, 50s?

80, almost 100 years. Jeez. Since World War II. I remember when that was like just like that was firmly like 40 to 50 years in the past. And it just keeps getting further and further away. It's really awful. Yeah.

But we've kind of figured out in the interim that synthetic rubber, it's useful, but there's nothing that can match natural rubber for like grip, heat dissipation, all sorts of other properties. So we're starting to go back to look at sources for natural rubber, including ones that are more sustainable than the rubber trees, which require you basically deforest and then plant the rubber trees to create a plantation. With dandelions, you don't have to do that stuff.

No. You got a big field, you can have dandelions. And like I said, it grows in, it doesn't have to be great soil. You can grow it hydroponically without soil at all. You can grow it in the air, which is aeroponically. It's pretty amazing. And I think it's one of those things where like anytime you have a monoculture plant like that, like the rubber tree, it makes people a little bit nervous besides the deforestation. Like if anything ever happened,

like some kind of weird blight and the rubber trees were just, you know, not a candidate anymore. You got dandelions kind of waiting on deck with their bat. Right. So it's kind of surprising that it went from this really prized plant in so many ways to a hated weed, especially in Europe and the United States. And you hit upon why it became a hated weed. You use the word monoculture. And the largest monoculture here in the United States are people's lawns.

And for part of the aesthetic of the lawn, you cannot have dandelions breaking up that perfect, unbroken sea of green grass. You got a dandelion popping up, the whole thing's ruined, basically. That's the way people think of dandelions and lawns these days or have since about the 50s, essentially. That beautiful yellow flower. Stomp it! Right. Dig it up.

But yeah, that's what happened. And we've gone over this before, but just sort of as a quick overview. This is the kind of thing that came over from England starting in the 17th century is when British aristocracy really started to get into these perfect sort of croquet playing lawns, I guess is what you would call them. And then in America, it was post-World War II when suburbanization really took hold.

lawnmowers really came into their own. Everyone was like, hey, we've got these great new chemicals that'll kill everything and make the grass grow really, really well. And it's just modern and tidy and good looking. And that really kind of transformed

The United States, you know, like keep up that lawn, make a perfect green lawn if you want to keep your property value up. Right. That's a big one. And Kyle also dug up another reason, too, that once the Cold War rolled around, conformity was equated with safety. So if you weren't keeping your lawn trimmed like everybody else.

What's going on with you? You're making me feel a little bit nervous because you're not conforming. You must be a red spy hiding out in suburbia, basically. Right. And I think that's a really important kind of overlooked driver for things like perfectly manicured lawns and everybody having the same kind of thing. Yeah. And speaking of driver, the other I don't think we've ever mentioned contributor to this was in the 1950s.

golf started being televised in 1957. You got golf on television for the first time and people look at Augusta National and these golf courses that were beautifully manicured and aesthetically pleasing to the eye. And they're like, hey, I need to get some of that in my front yard. Maybe I can practice chipping some balls around in my front yard. Yeah.

Also, if you're sitting there thinking like, wow, I really love hearing these guys talk about grass, but I'd love to hear them have a dispute over it. You should go listen to how our grass works episode. It's actually a pretty good one. It's a classic stuff you should know episode. It totally is. But anyway, all that preamble about, you know, us pooping lawns and why America did that.

brought us to this, which is weeds became enemy number one and dandelions were maybe even near the top of that list. Yeah, there's a lot of reasons why. For all the reasons that they're valuable, the pollinators and other kinds of plants and that they can grow in marginal lands and basically everywhere, it makes them an enemy as a weed if you're trying to create a monoculture lawn, right? So they can regenerate from like a one-inch section of root,

Which means that if you cut a dandelion off at the even below ground level, it's like good, you know, good try, pal. But it just sprouts right back up. You have to dig them up. And even after you dig them up, you might not get them. Because one of the things that I didn't know about dandelions is I knew they grew from a taproot. You have to get that taproot up or else it's just futile.

But that taproot can grow, depending on the age of the dandelion, over a dozen feet, meters, four meters into the ground. Meters. And that makes it really hard to get rid of. And so if you're like a groundskeeper for a golf course or something like that, you have to really keep up with the dandelions because they'll spread really fast and they're really hard to get rid of once you do start trying to get rid of them.

Yeah, for sure. I got to say this last fact from Kyle because it goes back to the lawns, but this really kind of drives it home about how not great a perfect green lawn is for our society. There was a study in 2005, residential lawns in the United States make up 2% of the land but require more irrigation than any domestic agricultural crop. I've got one to piggyback on that.

Let's hear it. The U.S. Fish and Wildlife Service says that homeowners use up to 10 times more pesticides per acre than farmers use on their crops. So we're using this stuff, overusing it, and we're using it on stuff that's not productive land just to keep up with the Joneses so they don't think we're communist spies. Yeah. You know, I walk Gibson in the mornings and there are the only lawns that he ever like

rubs his face in are the most perfect green ones and I know that it's because they have recently been sprayed and he smells it and is trying to rub all in that stuff and it drives me bonkers. Yeah, it's

It's like I would love to just let my lawn and you me too, just go to like wildflowers, go to weeds, you know, just mow it. You keep it mowed, but at a higher height. But yeah, you just let this stuff grow and we would be completely we would stick out like a sore thumb from the rest of the neighborhood so much that our neighbors would be mad at us.

That's how entrenched the idea of having a perfect lawn is still in the United States, depending on where you live. Yeah, for sure. And like no one around there even does like permaculture and, you know, other options besides just letting it grow wild and crazy? No, it's nuts. So we definitely draw a line. So we're like, OK, we'll keep up with the lawn, but don't touch the lawn.

you know, the shrubbery, the perennials, the garden, essentially, right? But people will hire the same company to like treat their lawn with chemicals to spray their bushes and spray their gardens with chemicals to kill off the bugs. And then they have to go in and try to recreate the stuff that the bugs are doing for free, the services they're providing, because you've killed off the bugs. It's insane to me. So we definitely don't, don't,

we don't cotton to that. Yeah. There was, speaking of bugs, there was a scientific, scientific review in 2019 that found that the global mass of insects is falling at a rate of about two and a half percent per year. And dandelions is a,

High, high on the list of pollinators. Caterpillars love munching on them. Moths love munching on them. And all those bees and butterflies love doing their thing on them. So even, you know, I'm not trying to shame people, but let's say you do like your lawn and everything. Even waiting in the spring, like longer to cut it, even cutting it higher, letting the dandelions grow up a little bit before you start whacking them down.

Even that minimal amount will help out a little bit. What's interesting is the non-chemical way I saw to treat your turf grass for dandelions is to let your grass grow longer than you have been, like cutting it at a higher mower height. Yeah. Because as we talked about, dandelion leaves are so low growing that the grass will shade out and out-compete the dandelions. So if you really do want to get rid of dandelions, but you don't want to use chemicals, that's a pretty good way to do it from what I've seen.

Yeah, totally. Some states have actual programs. There's one in Minnesota called Lawns to Legumes, which is a great title. They launched that in 2019 where they just basically incentivize people to say, get rid of that lawn, put in flowering plants, put in beds. You can have a rebate if you have a pollinator friendly native plant.

wildflower scene at your house. Yeah, I didn't look up the amount, but I would guess at a minimum, the rebate is worth a million dollars. That'd be my guess. You think so? There's a couple other things that I found that dandelions, I don't know if you looked at it or not, that they kind of provide services to the plants growing around them, including grass. Yes.

Because as we mentioned, those tap roots, they grow really deep. And as they're growing deep, they're actually accessing nutrients that other plants around them, again, including grass, the roots of those plants can't reach because it's too deep.

and it brings those nutrients up toward the surface. And as the dandelion dies off, the other plants get to eat those nutrients that they otherwise wouldn't have had access to. And those same roots also aerate and loosen compacted dirt too, which makes it easier for the plants around the dandelions to grow. Amazing. Is there anything dandelions can't do? No.

I don't know. I mean, they're not super fragrant. No, that's true. They're pretty much useless in that sense. But they can grant a child a wish. They sure can, man. They sure can. I remember doing that so many times. I keep trying to do that with my dandelion puff head in resin, and it's not working. I don't have anything else, though. I'm kind of looking over the list here. I know we were kind of all over the place, but it's just sort of one of those episodes where...

It's like, well, here's a list of 100 amazing things. And so sometimes those are a little tougher to organize. Yeah, but they can be pretty fun, too. I had fun at least. How about you? I did, too. And that rubber thing. Are you kidding me? Since neither one of us has anything else about dandelions, then we're going to call it quits on this episode, which means we've just activated listener mail.

You know, no listener mail today because what we're going to do is something we haven't done in a while is help support and bring some attention to a great cause. Our friends from the Cooperative for Education, a.k.a. Coed, whose mission it is to break the cycle of poverty in Guatemala through education. And we've been working with them for 15 years and we got a new thing coming up with them, right?

Yes, we do. So first, let me just explain. Over $1.3 million in contributions have been made to COED thanks to our partnership with them at Stuff You Should Know for 15 years. That's really good, if you ask me. That's incredible. Which means that 160 kids have been given like a huge leg up to escape poverty and create like break intergenerational poverty and create literally like a new life for their entire family from that point on.

That's right. You know, we went down there, I guess, 15 years ago when they invited us very early on in Stuff You Should Know's canon. Yeah. In our history. And we went down to Guatemala and those shows, we did some shows on that, that trip and that visit. We get to actually hear Jerry speak, which is pretty exciting. Yeah. And they're just great. We've been working with them ever since. And the fact that the Stuff You Should Know Army has raised 1.3 million bucks for them over the past 15 years is going to be

A real proud part of our legacy. But we have a call to action, right? Yes. So you can join. We're starting a drive essentially right now. That's right. You can join the cooperative, which is a program of theirs for $20 a month. And you'll collectively sponsor a bunch of students in the Rise Youth Development Program, right? That's right.

And so it's going to get spread out. You're going to be helping a bunch of kids at once. So you can feel good like five times over with each monthly donation. And then in 2025, more than 1,100 students will be able to start school in rural Guatemala, which will be their biggest class ever. They need help to make that happen, which is why we're saying join the cooperative.

That's right. And as an incentive, if this is for you, if you set up your gift by Tuesday, December 3rd, then you are signed up for a chance to do a virtual hangout with Josh and I. We do this every year around the same time. It's always a lot of fun. We hang out with, I don't know, six or eight people all over the country. And they get to just, you know, ask us questions and tell us that we're cool or dumb or whatever. It's your chance to really hand it to us if that's what you're after. Right.

Yeah, hopefully don't do that. But sure, I mean, I guess if you've given to COED, then you deserve to do whatever you want to. That's right. So just go to cooperativeforeducation.org. That's the word cooperativeforeducation.org slash S-Y-S-K. And start giving now. A little bit goes a long way down there. Yes.

And in the meantime, while you're looking up cooperativeforeducation.org slash S-Y-S-K, you can also send us an email. Send it off to stuffpodcasts at iheartradio.com. Stuff You Should Know is a production of iHeartRadio. For more podcasts from iHeartRadio, visit the iHeartRadio app, Apple Podcasts, or wherever you listen to your favorite shows.

We'll be right back.

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