Small Greenhouses For Small Farms

Small greenhouses are a pure magic money machine for the small grower

I'm a big fan of small greenhouses. The best money I've ever invested on my farm has been to build my little lean-to greenhouse and the somewhat larger mobile greenhouse on rails shown above (inspired by Eliot Coleman.)

My greenhouses have more than paid me back for the time and money I spent in constructing them. In my opinion, this is one of the first tasks a small farm should undertake.

Here's why building a greenhouse is a great investment for a small farm.

Small greenhouses are cheap to build.
A light frame (of wood, steel or PVC) covered with poly is the cheapest covered space you can create. Depending on your resourcefulness, they can cost you a couple bucks per square foot, or even less.

Both my lean-to greenhouse and the mobile greenhouse were built with steel hoops I bartered for with a neighbour. My cash outlay for the framing lumber, screws and bolts, and 5-year greenhouse plastic brought the cost per square foot to about $1.50 for the lean-to and $2.50 for the bigger one.

Small greenhouses are productive.
Even my little lean-to greenhouse (about 160 square feet) produces thousands of dollars worth of transplants each season. The production per square foot would probably be in the range of $15-20 or more, if I calculated the value of the transplants the greenhouse produces.

Small greenhouses are easy to manage.
My greenhouses don't require complicated and expensive heating, ventilation or irrigation systems. I water the greenhouses with a hose and sprinkler. Since I operate my greenhouses seasonally (the big one from March to November, the little one from April to October), I don't need a lot of extra heat.

My lean-to, the first of three small greenhouses I built

If frost threatens my lean-to greenhouse, I just stick in a small portable electric heater. The lean-to greenhouse is ventilated with a cheap box fan ($25) that I turn on in the morning, and turn off at night.

See also my new page  Build a Lean-To Greenhouse to start your plants and keep them thriving. Instructions to build a lean-to just like the one in the picture, the first one I built at New Terra Farm.

Small greenhouses come in all shapes and sizes

Turn your imagination loose; a greenhouse can be constructed in lots of ways. One of my gardening neighbours used a fast-framing kit intended to make a small shed to build her little greenhouse. The plastic and 2x2's cost her less than $50.

My farm helpers from a couple years ago (they now operate their own market garden) scrounged a used garage shelter kit. They covered it with clear poly, and now have a very productive 10 x 20 greenhouse. They used pool noodles wrapped around the piping to protect the greenhouse plastic, so it's pretty colorful, too.

If you are keen to build your own hoop house, see my review of my top choice for a DIY hoop house kit here.

Use their kit and your locally-sourced lumber and fence rail to build a hoop house on the cheap.

2019- I built this little 8'x12' beauty using 16-foot cattle panel sections

Best reason: greenhouses are just plain fun!
I've been doing this for a while, but I still find greenhouses to be magical. On a bright and sunny day last February, with a couple feet of snow on the ground, I started working in my mobile greenhouse.

The indoor temperature was about 18C (65F). I was working in just a sweater and jeans, and it was thoroughly enjoyable. It was like being transported about 3 climatic zones south without having to eat airplane food (and I didn't lose my luggage.)

Still about 2 feet of snow on the ground, but my greenhouse on rails is ready to go

Build Your Own Small Greenhouse

Bootstrap Greenhouse only from New Terra Farm

Bootstrap Greenhouse will show you step-by-step how to build a greenhouse and use it to best advantage your small farm.

We include plans and directions to build each of the 3 greenhouse designs we use on New Terra Farm.

Check out Bootstrap Greenhouse here.

Or for an even better deal, get Bootstrap Greenhouse as part of my Complete Start Farming Pack and save 50%.

More Resources for the Homesteader and Small Property Owner

Chapter 9 - The Solar Greenhouse: The Self-Sufficient Backyard. Read my review of this valuable resource here.

Learn to grow food like you have to - BEFORE you have to: The Bootstrap Survival Garden 

Best Survival Food Supplier: Survival Frog. Read my review here.

If you can find 50 sq ft you can have fresh eggs for breakfast (and maybe barter): The Eggs Factory. Read my review here.

Save 15% on a selection of farm and garden supplies. Read my Garvee review here

 More farm-grown reviews of products for the small grower and homesteader

Grow for maximum profit Grow the Top Ten Most Profitable Vegetables

CSA farms have the highest net income of all market garden models. Bootstrap Market Gardening shows you how to launch one of your own.