Winter Gardening - Poly Tunnel Project
Oct 18th, 2008 by Laura
This has been the week of the poly tunnels. Someday I’d really like to have a greenhouse, but in the meantime, we’re making do with row sized tunnels. Last week I got the first one up on Friday night after work to help protect the winter brassicas (and get them to harvest size before April). Today I worked on the second and remembered to bring the camera outside with me. If you’re at all interested in building your own, check out the step by step review below.
This was the view first thing today. The first poly tunnel is over the row closest to the house, with the mature leeks in front of it. The empty row used to house the tomato jungle (which is that pile of dead vines in front) and was ready to prep for winter planting.

After some forking to loosen the soil down 8 inches or so, I spread a couple of pounds of organic fertilizer on the row (about 5 3 pounds for 145 square feet). Then I raked it in and smoothed out the bed so it would be ready for planting of starts and seeds.

Next I pounded in the stakes for the hoops. They’re made of 15″ pieces of 1-1/4″ PVC pipe that Mike salvaged from a job site. They’re spaced 32″ apart, for a total of 19′ under poly.

Then it’s time to put up the ribs or hoops. They’re made of alternating 8′ pieces of 1/2″ and 3/4″ PVC. The 3/4″ pieces are on the ends and the two center ribs to give the structure a bit more stability.

Since I’ll primarily have access from only the east (left) side this winter, it was easier to plant before I put the plastic on. The only thing that made it in today was the lettuce and swiss chard starts as I was multi-tasking and planting the end of this row with kale, garlic and leeks and ran out of time. Also going into the tunnel are seeds for scallions, radish and spinach, plus a couple of garlic seeds for pest prevention. That will all go in tomorrow.

Finally, just before beer, on went the poly. The pieces that I have are 15.5′ x 25′. You could easily do this with a piece that was 10′ wide, but when I bought mine I originally used it to cover the tomato jungle and needed the extra width. The plastic goes over the hoops and is secured with clips on the top and right side. The left side is held in place with rocks at the base of each hoop for easy access to tend and harvest. The common row between the two tunnels is secured with a couple of extra 4×4 posts from the barn and the remaining with more rocks. The brassica tunnel opens on the west (right) side for harvest access.

The two tunnels together give us 152 square feet of growing space this winter, more than enough to keep us in broccoli, cauliflower, cabbage, chard, lettuce, radish, scallions and spinach. Plus, we’ve got some fall peas struggling to deliver, Brussels sprouts waiting to be eaten, leeks and carrots in ground storage and everything we’ve already harvested and preserved. I think we’ll be eating well this winter.
I’m excited to see how the poly tunnels work out for us as it would be nice to not be searching for a winter farmer’s market this year (closest I know of is in Seattle, a 40 mile drive).
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Have you signed up for the 08/09 Dark Days of Winter Eat Local Challenge yet?






