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Guy

Heat or no heat?

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Somehow I knew it would come to this.  I've just ordered a 6' x 8' greenhouse with two levels of staging.

A concrete base will be going down in a week or so, the greenhouse will arrive a couple of weeks afterwards.

I'm not planning on keeping anything which needs year round warmth, but do you think it's worth putting a heater in to keep it frost free over winter?

The plants I have at the moment are various Sarracenia, Drosera, Pinguicula, Dionaea, Cephalotus and  a Heliamphora nutans.  A mate with a heated greenhouse can overwinter anything which wouldn't tolerate going down to about 4C

Thanks.

Guy

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Depends on where you are and how much risk you're prepared to take. A heater will at least give you the option to use if needed. I initially heated - plants survived anything and grew earlier but grey mould could be an issue. It also did show on my electricity bill! I now just use a 30w tube heater to keep it frost free (but occasionally a deg or two below zero overnight) and everything survives. I've quite a few outside all year too. Neps and helis don't thrive and tropical pings and tropical drosera struggle so depends on what you want to grow. I have my neps and genlisea in my conservatory - normally 10 deg min. I still have the 3kw heater but have only used for a few nights each year and it's turned down very low but last few winters have been quite mild in the south of UK. 

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Thanks Dunc

The best way forward is probably to get a hollow tube laid into the concrete base at the back and leading to the outside.

This will give me the option of feeding a cable in for a heater if I decide to go for it at a later date.

Guy

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