We have always planned on getting a large polytunnel. http://growblogs.com/polytunnel-2/
The construction of our first polytunnel was a fun project and was helped along by some great weather.
Before we had even ordered the polytunnel we dug over the ground underneath where our polytunnel was to sit. We took out as many weeds as possible, much like if we were planting directly into the soil. This area is riddled with mares tail so the weeds removed were dried and burned. We then covered the area in a thick black plastic, to prevent sunlight reaching the ground.
We were talking to a fellow plot holder whose polytunnel skin took of like a kite and ended up damaging some closed by roof tiles. Our plot is close to a set of railway tracks, and safety is utmost. Conor can often be found waving at trains while enjoying his black coffee. I decided to build a fence next to the polytunnel, to provide some additional support.
With the exact area of growing space now visible, 18 square meters. Strong and highly recommended weed proof membrane was purchased and placed on top of the ground. Growing directly into the ground is not an option due to the annoyance of mares (horsetail. So raised beds on top of a strong weed suppressant it is. This definitely adds to the costs, with additional materials and soil to fill the beds being required.
It’s always best to skin your polytunnels on a calm day, in fact, it’s almost impossible to do it in strong winds. It is also better to do it with a few spare hands floating about. But it is possible to do it alone as I managed if you’re smart about it. Initially digging a trench and covering the skirt with soil was the plan. But on the day it seemed something more substantial was required. The decking was initially used to hold the skin down and stop the wind from making it flap. I decided to skirt the edge of the polytunnel. with the decking to add weight and help hold the skin down.
This also seemed to allow the corners to sit well over the frame. The front door of the polytunnel is one large zippable flap. At the minute I secure it by tucking under the frame and applying weight with a pallet. It is definitely something I have been thinking about and something I might have just cracked this very evening.
After a few days of tweaks and fixes and retrenching one of the corners I am finally happy with the way it turned out.
Having already blown the allotment for this year on the polytunnel, the fit out needed to be thrifty. The hoarders in us last year salvaged some fencing and we had some timbers left over from Conor’s new decking at his home. If we use them a couple of seasons then they owe us nothing.
I’ve never used grow bags before, but as our local DIY store was running low on decently priced MPC I thought I would give them a go.
In preparation for the polytunnel completion, we started a crop of tomatoes, chilies, and peppers. Also with the added benefits of extra heat, light, and space. We will soon be enjoying some new variety to the plot including, okra, and cape gooseberry.
Being new to polytunnel gardening, I haven’t got much advice to give. except that if you’re planning to work inside your polytunnel and the sun is shining? Shorts, sun cream and water are a must.
Please send us tips and photos of how you have laid out your polytunnels? And lettuce know what you are growing in yours.