Growing peppers in an unheated greenhouse in the UK

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Growing peppers in an unheated greenhouse in the UK

Post: #412 Guest
Tue Dec 21, 2004 4:37 pm

Hello, I want to grow some pepper plants next year. I have a greenhouse but I can't afford to heat it. Can I grow them and when should I think about starting them off?

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Peppers

Post: #416 Elderflower
Tue Dec 21, 2004 5:15 pm

Hello Guest! I had a smashing crop of peppers in our unheated greenhouse last year. They grew lovely and big and also ripened to a rich red. I started them off in trays and then pricked them out as usual. Can`t remember the exact time but it was just what it said on the seed packet! We had enough to share them with the neighbours.
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Post: #425 Wombat
Tue Dec 21, 2004 8:34 pm

G'Day All,

While I haven't tried it myself, I have heard of people building a compost heap in the greenhouse, then putting the flats/punnets etc on top and using the heat from the compost to keep the seedlings warm :D
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Re: Growing peppers in an unheated greenhouse in the UK

Post: #276722 diggernotdreamer
Thu Nov 07, 2013 3:05 pm

I bought some pepper seeds from Real seeds called Nigels outdoor, has anyone else grown this one, unfortunately, it failed because I was a bit preoccupied with other things, apparently it grows outside in their test gardens in Wales, would appreciate any info

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Re: Growing peppers in an unheated greenhouse in the UK

Post: #276788 sleepyowl
Thu Nov 14, 2013 10:12 pm

I have grown peppers outdoors & have absolutely no problems with them, I'm not sure what the cultivar was but it was an F1 hybrid
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Re: Growing peppers in an unheated greenhouse in the UK

Post: #276825 E-P
Sun Nov 17, 2013 2:00 pm

this year was the first time ever that I grew my own veggies. We had 6 or 8 (can't remember) sweet pepper plants in an unheated greenhouse with several holes in it. In addition to that we sow them too late and when I removed the grow head (to make it grow more bushy) I stupidly pinched off the whole grow head instead of the very tip :D It took the plant about a month to recover from that.

Regardless of this disastrous start we got 2.5kg of green peppers - so the answer is yes you can!

Next year I am expecting 70% increase in yields :cooldude:

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Re: Growing peppers in an unheated greenhouse in the UK

Post: #276880 dave45
Sat Nov 23, 2013 6:07 pm

FWIW I have been trying to grow peppers in my unheated greenhouse for the last 4 years... I find them VERY hard to start off from seed. Tried starting from feb thru may... no consistent results. they either fail to germinate or do so then hardly grow for months. btw 3 years ago I did try using a heated seed tray. Zero germination. I've tried lots of different varieties but can't find any common factor. Once hot summer days kick in they tend to spurt into growth, and the plants and fruit can last into November. This years strange result is that the Californian Wonder variety that in previous years grew into plants about a meter high with full, apple-sized peppers - well this year the plants are a foot high and the peppers are walnut sized, but perfectly formed, red and green. And the plants are still green and healthy this week and still peppers ripening. Greenhouse max min temps this week: +27C to -2C.

Tomato crop in the same greenhouse has been bumper this year... pulled all the remaining plants up last week and cropped about 3kg of green tomatoes to try and ripen indoors. Tomato plants tend to suffer the cold before pepper plants in my experience.

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Re: Growing peppers in an unheated greenhouse in the UK

Post: #276906 bonniethomas06
Tue Nov 26, 2013 5:07 pm

They are definitely good in a cold greenhouse - I had some great peppers a couple of years ago, Romanas from bought seed and the best were Piccolinos - mini pointed peppers about the size of a plum, which grow quickly and best of all you can pick, roast and stuff with cream cheese. Mmmmmm
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Re: Growing peppers in an unheated greenhouse in the UK

Post: #276911 sleepyowl
Tue Nov 26, 2013 6:54 pm

Dave I started mine off in the house, maybe it has something to do with the humidity as well as the heat
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Re: Growing peppers in an unheated greenhouse in the UK

Post: #277811 Romy_09
Sun Mar 02, 2014 9:57 am

Nice post

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Re: Growing peppers in an unheated greenhouse in the UK

Post: #277813 Marc
Sun Mar 02, 2014 10:16 am

I think it depends a lot on the micro-climate where your greenhouse is. I have only a tunnel in a field, it's exposed and chilly, catches frosts badly and cold winds from all directions. If you are in a sheltered spot in a town (but not too shady) the temperature will be several degrees higher most of the time. To grow them successfully from seed it's useful to have a heated propagator or somewhere warm inside to germinate and grow them on. Alternatively you could buy plants in April or May which gives you a head start. They should do well if there's plenty of light around, but do take ages to ripen. If you want them red (or other coloured) be prepared for a long wait after they've grown to full size.
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Re: Growing peppers in an unheated greenhouse in the UK

Post: #278027 jamesintayside
Sun Mar 30, 2014 7:15 pm

So true about the micro climate - one house near us has a great garden just faces the right way and is sheltered.
my inspiration a great blog http://tinyallotment.wordpress.com/

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Re: Growing peppers in an unheated greenhouse in the UK

Post: #279318 VM
Tue May 27, 2014 7:17 pm

We have never had problems with germination - start them in a propagator. And the plants do fine, but we have never managed to get red peppers, just lots of green ones. They are wonderfully fresh-tasting, but still a bit sad not to have red ones. Previously we were growing them in a large polytunnel at our Manchester allotment. This year, in Lincolnshire, they are in a tunnel at a friend's place, which is probably a bit more sheltered than the allotment was. One day we will have a tunnel again in the garden, which is sunny and sheltered - maybe we'll have red peppers then!
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