Well... Here's the mocked-up greenhouse within a greenhouse that I proposed in my earlier post 'Off Topic Early Tomatoes...'. Whether it's effectiveness will be enough to negate the cold days ahead is yet to be tested, but I think I now have a better than evens chance of success.
I constructed the main body of the cloche from some type of stiff polyethylene sheeting, similar to drinks bottle except thicker, which I found in the shed. I capped this with some LDPE sheeting (food storage bag material) stuck down with some gaffer tape.
The black plastic sheeting acts as a blanket to warm the soil. The brown thing at the base of the plant, that looks like a terracotta pot, is actually a section of drainage pipe acting as a tomato collar. This will channel the liquid feed to the roots that matter because the tap root of the tomato will go down to find a consistent water supply, whereas the roots closest to the surface are better geared towards utilizing nutrients for the plant.
All I need to do now is maintain my optimism, and get the tomatoes best companion plant growing... The marigold.
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