Reading Your Weeds: What Do Weeds Really Tell Us About Soil Conditions

Broadleaf Plantain Credit: USDA

Years ago, when I was a news reporter at a weekly paper, an editor yelled in my face that I wasn’t fit to be a journalist because I was too easily “spun.” It wasn’t the first time this guy had wigged out at my inability to see the world in the same black and white way that he did. But it was the last. Maybe I am easily spun. I didn’t deny it. I prefer to think, that I can usually tell the difference between someone who is selling something and someone who is offering their informed opinion—whether I agree with them or not.

Sure, it does mess with a well-defined story idea when research and sources don’t take you in the direction you thought you were going to go. But that happens sometimes. In fact it happened with this story I’m posting here, which is a longer version of a recent article I wrote for Norther Gardener magazine about using weeds as soil indicators.

I have read and heard for years that weeds can be good soil indicators, and gardeners who understand what their weeds are saying can remedy soil problems accordingly. “Read your weeds,” people often say. I never paid the idea much mind. But last summer, after hearing that advice for what felt like the zillionth time, I decided to look into it.

The Great Worm Escape

I’ve read that you can always tell something is wrong with your worm bin if your worms try to escape. Too much acidity, heat from decomposing food and other organic matter, excessive dryness or moisture——there are a lot of things that make worms want to flee. I don’t know what happened in my bin, but last Wednesday morning I went down to the basement to check on the worms and was horrified to find most of them plastered to the underside of the bin’s plastic lid.

Not wanting to squish anyone, I carried the worm-covered lid upstairs to the kitchen along with the rest of the bin. Deadlines were pressing, but I couldn’t just let the worms suffer. So I made myself a cup of coffee, put on an old Smith’s CD (because nobody puts an upbeat spin on misery quite like Morrissey) and sat down on the kitchen floor to sort worms into a separate, clean container.

Our Silly Book Trailer Got a Nice Mention on Garden Rant

The publishing world has changed a lot in recent years, and if you haven’t already seen one, book trailers are one of the many things publishers are asking authors to make these days. When Timber Press asked Jeff and me to make a trailer, we were happy to oblige.

The only problem was our mutual love of toilet humor turned out to be a bit over the top for the folks at the University of Minnesota where Jeff is a professor. So after a couple of attempts, we finally came up with a trailer that’s gross, but still tame enough to get a thumb’s up.

Amy Stewart at Garden Rant was kind enough to post the trailer after she watched it this week. Thanks, Amy! Go here to see Amy’s post on Garden Rant and here’s the video if you’d like to see that, too.

Check Out My “Rules, Schmules” Post for Timber Press

Timber Press, publisher of my new gardening book with Jeff Gillman, “Decoding Gardening Advice: the Science Behind the 100 Most Common Recommendations,” asked me to write a few blog posts for them this month as part of a special promotion for the book.

Here’s a link to my latest post, which includes a before/after photo of my front yard. It makes my back hurt just to look at that picture!

Not surprisingly given the book’s title, I wrote about gardening rules and how a lot of them don’t matter as much as people say they do. And then, well, some advice is best taken. I learned that the hard way and I imagine I’m not done learning that lesson. I hope you’ll check my post out here.

The Heirloom Life Gardener

If you don’t already grow your own food, the gorgeous photos in this book alone will make you want to. But what I enjoyed most about The Heirloom Life Gardener was Jere Gettle’s wise, warm voice, which made this book read like a conversation with a longtime gardener friend who knows way, way more about seeds than I ever will.

Dubbed “the Indiana Jones of Seeds” by New York Times Magazine, Gettle is well known in organic gardening circles for running the Baker Creek Heirloom Seed Company with his wife Emilee.

Their book, written with Meghan Sutherland, offers a lot of great hands-on advice for growing 50 different heirloom vegetables, as well as tips for disease control and seed saving. (Check out page 203 for great visuals on saving tomato seeds.) But there are also a lot of fascinating stories about things like how plants got their names, how certain vegetables became popular and, of course, how Jere developed his passion for heirloom seeds.

A Hobby Farming Primer

Even if you are not a hobby farmer, don’t know any hobby farmers, and have never dreamed of being a hobby farmer, you’ll still find a lot of worthwhile information in Michael and Audrey Levantino’s new book, The Joy of Hobby Farming: Grow Food, Raise Animals, and Enjoy a Sustainable Life (Skyhorse Publishing, 2011).
Tired of the hustle-bustle life in San Francisco’s Bay Area, the Levantinos were thrilled when Michael’s company offered him a job opportunity that took them to lush Virginia. Though they’d never dreamed of owning a farm, when a 23-acre farm “found them,” they bought it and learned the ins and outs of how to run it.

Great garden reads

When I decided to write my October column on garden-related books you might want to check out during our impending (and far too long) winter, I had no idea I would be writing it on a warm, 75-degree evening just a couple of weeks before Halloween. But I figure I’ll do it anyway because, well, this is Minnesota so all hell could break loose tomorrow and you might be in need of a good book while waiting for your neighbor with jumper cables to help you start your frozen car!

I’ll begin by warning you that there are several memoirs in the bunch, but then I’ll make it all better by assuring you that these aren’t the sorts of memoirs where disheartened divorcees run off to third-world countries to find love and enlightenment. No, no. (Ack.) These are memoirs packed with dirt and critters and plants. At the top of the list is, “The Sound of a Wild Snail Eating,” by Elisabeth Tova Bailey. I found out about this while reading one of my favorite gardening blogs, Garden Rant:  gardenrant.com.

Books: Earthworms

I just finished reading Amy Stewart’s book “The Earth Moved: On the Remarkable Achievements of Earthworms,” and I thought it was fascinating. You know how you always hear that soil is healthy and in good shape when you dig into it and find a lot of earthworms?

Well, that’s true! They may be deaf, blind and spineless, Stewart writes, but earthworms have a tremendous impact on the soil. As they move about consuming soil and decomposing matter like bits of leaves and pooping it back out as “castings,” earthworms literally change the composition of dirt so it can do things like absorb nutrients and hold water better. Research has shown that the most beneficial fungi that boost plant growth often increases dramatically when earthworms are around.