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High tunnel beginners live high on hopes, low on experience

Michael Johnson, Agweek news editor, is stepping into the world of high tunnel construction but remains a long ways away from high tunnel production.

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Imperfections exist in repurposed hoops for this greenhouse. More bracing and bending may do the trick.
Michael Johnson / Agweek

I’m experiencing muscle pains I’ve not felt in a long time due to my latest weekend project.

I spent several hours performing a balancing act on the loader bucket and arms of my Farmall M in an effort to add bracing to a high tunnel. It was a workout, but doing it in temperatures so warm that I didn’t need gloves was a blessing.

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Quick aside: Readers may remember my article months ago about the struggles to find an affordable tractor. Well, I received an outpouring of calls and emails from people all over our readership who were genuinely helpful, and more than a few had a tractor they were ready to sell. While some were not quite what I was looking for, others were not in my price range and, unfortunately, some were farther away than I cared to travel to pick up or have such a tractor delivered.

Even so, I’m thankful for all of you. I’m always impressed with readers who are willing to have a conversation with me about a topic of our articles here at Agweek.

Among my asking for help, my father-in-law spotted and notified me about a tractor that fit the bill. It’s old and not very pretty, but it has good tires and runs.

While snow removal has not been much of a need so far this season, I’m still finding reasons to go “put-put around” as my wife, Kelly, says.

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A solid baseboard helps anchor the greenhouse and hold hoops in line. It's also a great way to keep critters and cold air from getting under the plastic.
Michael Johnson / Agweek

So, back to my project. The tractor was parked under the half-moon rings of a rehabbed high tunnel we picked up from my wife’s aunt Patty. The high tunnel took a hard hit from storms on her property and rather than get scrapped, we picked up the parts to see if we could make it work as our first greenhouse.

Trying to get bent piping to remember it's original shape is about like getting the Israelites of the Bible to remember miraculous works of their past. Apparently I have some stiff-necked hoops.

Prior to the snowfall I was able to pound all the foundation pipes into the ground, and I’ve been working on adding the hoops and support bracing on any of the warmer days since then. It’s not perfect, but it’s looking more like it should work than when I first started looking everything over in November.

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High tunnel brace.JPG
Conduit strapped to the inside of the hoops helps to strengthen the shelter and straighten out some minor bends.
Michael Johnson / Agweek

With much of the main high tunnel now installed, next will come construction of endwalls, covering the entire structure with plastic, making a door, adding dorm and side vents and, oh yeah, then we have to figure out how to grow things in it.

Read more of Michael Johnson's columns here:

The idea of having our own greenhouse had us filled with hope of growing our market garden options and extending our season. Our expectations were far outweighing our experiences.

So, I signed up for and Kelly and I quickly realized how little we knew about this new exciting world. I'm hoping to write about the interesting discoveries shared in this webinar soon.

Entering the high tunnel world can be expensive. You certainly save a bunch of money by finding a used model for cheap or free. Others have found great savings by using the Natural Resources Conservation Service to get a discount on a high tunnel.

Then there's the work of constructing the tunnel. The U of M webinar suggests gathering 8-10 people to construct a tunnel over a weekend. Unfortunately, I chose to construct the tunnel by myself, thus the abnormally sore muscles. Don’t feel sorry for me; I’m bad at asking for help.

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The repurposed high tunnel sets next to the original garden space on the farmstead.
Michael Johnson / Agweek

Then there’s the cost of maintaining it all, finding an irrigation method that works for you, the expense of adding more square footage of plants. There’s obviously added labor. Success does not come without hard work.

That’s made clear by the sheer amount of people who go ahead with installing these greenhouses only to leave them empty within a few years of installation, according to presenters of the webinar.

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I’m determined to see this project through. Aunt Patty and everyone else are invited to see how things are going months from now when we hope it’s filled with green things that we planted, not just grass and weeds that are already well established on this piece of land.

I'm learning that each step of this process has been made easier with the help of others more experienced than me. The sooner I realize that, the less painful it will all be.

Michael Johnson is the news editor for Agweek. He lives in rural Deer Creek, Minn., where he is starting to homestead with his two children and wife.
You can reach Michael at mjohnson@agweek.com or 218-640-2312.
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