Attempting to heat a polytunnel + an Autumn garden

I was thinking the plants in the polytunnel might be getting a bit cold since the daily temperatures have plummeted around here. I know people often use fancy greenhouse heaters but I don’t have one and I didn’t want to risk anything that would burn it down so soon after I actually got it put up!

As I often do, I decided to do a little experiment and use some of the tricks I have when sowing seeds. First up was the hot water bottles which I placed between pots, the theory being the heat would radiate to all pots around it.

Next up was the hand warmers – you know the type of thing you click the metal part and it turns solid and hot? Well they work well getting seeds to germinate so I placed them around areas which I thought would need a heat boost.

I’m not expecting any fruit from these but at least I can keep the poor plants alive a little while longer.

The next thing I tried was containers. I hear about people keeping containers out in the sunshine then putting them inside so the heat can radiate from them all night. Well, we didn’t have sunshine when I was doing all of this (it was torrential rain), so I used hot water!

Some of the tobacco plants have very big leaves so I’m trying to keep them going for as long as possible – flowers would be nice!

Other plants are looking reasonably happy all things considered.

I’ve just checked the weather forecast and it looks like we might hit 19/20 C on Tuesday and Wednesday – woohoo!!!

That’s practically tropical.

© Sharon O’Neil. All rights reserved. Original work protected by copyright law


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6 responses to “Attempting to heat a polytunnel + an Autumn garden”

  1. There is no doubt that the sun is the best heater!

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    1. True but it wasn’t appearing when I first thought of this!!

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  2. I’ll trade you some of my weather!! Too hot here 😆 love your garden as always!

    Liked by 1 person

    1. Hey we got sunshine today! Well, a bit…

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  3. I’m going to try straw bails this winter to keep my young citrus trees warm (hopefully). Also will use a lot of mulch. This should generate some good heat for the roots as the straw breaks down, and then next spring I’ll spread it around.

    We have to do this with our figs as well, cover them completely with leaves, or they die down to the ground every winter and never get large enough to produce a good crop. Apparently they are successful growing figs in New York this way! A lot of work, but we love our figs!

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    1. That sounds great. I’ve tried straw as a mulch before but it just brought in the snails and slugs!

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