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Problem Growing Tomatoes and Cucumbers together in Greenhouse

Hi, I finally saved up and got a greenhouse installed last year! Yaay! Midway thru the year so no time for seeds, I just bought small pots of tomatoes and cucumbers and put them in some v. large pots \ compost along the back wall.

The tomatoes did very well, the cucs were terrible, barely grew or cropped at all. I don’t know what they were as I lost the label but they were indoor type and minis. 

It’s a very hot GH, so I applied shading. It’s possible the cucs were too hot, they grew pale. Also the variety could have been poor. I think I watered them enough.

I’m used to growing crops outside, it’s been c8 years since I last had a GH. 

Has anyone else had problems growing cucs and toms in the same GH? 
Or can suggest which cucs are most reliable? 
They do like different conditions... I’m wondering if I should keep the cucs outside. 

Posts

  • fidgetbonesfidgetbones Posts: 17,618
    Cucumbers prefer a much more humid area than tomatoes.  If you do not have a divided greenhouse, then a sheet of polythene draped across the part way, and growing them at the end furthest from the door  will help. The floor in the cucumber part can be damped down twice a day to increase the humidity. The tomato end will require more ventilation.
  • KiliKili Posts: 1,104
    edited January 2020
    I've never had a problem growing tomatoes and cucumbers in the same greenhouse. 
    What seed did you use, was it a greenhouse F1 hybrid variety (all female flowers) and not an outdoor variety, some varieties can be sown outdoors and in the greenhouse but, not all outdoor varieties do well in the greenhouse.

    If you used a non F1 hybrid variety did you lack pollination from the male to the female flower, was there a lack of bees around to pollinate?

    There can be any number of reasons why your cucks did not do well but, you can help yourself by choosing a known greenhouse variety with all female flowers which basically means you don't need to worry about pollination, then its just a matter of getting the feeding and watering right.

    Using the right variety for a greenhouse makes all the difference. I'm going to give these a shot this year and try one other variety just in case these don't perform

    Some helpful information on cucumbers can be found here

    Don't give up I think its just case of getting the right variety. I've tried different varieties and some years its been a total loss. That's why I always go for the F1 hybrid all female varieties now as you cut out that worry of pollination .

    Good luck may your cucumbers be long and sweet  :D

    Kili

    'The power of accurate observation .... is commonly called cynicism by those that have not got it.

    George Bernard Shaw'

  • purplerallimpurplerallim Posts: 5,287
    Last year was not typical growing season for cucumbers,  but good for toms. I have always grown them together without problem in a greenhouse so try again this year, hopefully we will get a better growing season. ( I always buy cucumbers plants as I only want two of each, mini and regular) Best of luck.🙂
  • Pete.8Pete.8 Posts: 11,340
    I grow both in my 10 x 8 and they both do very well.
    I only grow 1 cucumber (which produces masses) which I grow at the opposite end to the door and I do have shading which is down for most of the summer

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • purplerallimpurplerallim Posts: 5,287
    @Pete.8 is the master cucumber grower, and has given me some good tips @8000wildflowers so keep trying, with his tips, and you won't go far wrong.😁👍
  • PerkiPerki Posts: 2,527
    I grow them in the same GH next to each other , it wasn't a great year for cumcumbers last year. 
  • Thanks all for the advice! I will be sure to read through and make notes.

    It may have been many things, weather, poor variety of cuc, and probably mostly me being a bit rushed with the GH ready late in the season and not used to having a GH / indoor growing again. Also it turned out far hotter inside than I expected (the cats loved it) .... but I’m not moving it now! 
  • purplerallimpurplerallim Posts: 5,287
    Lots of ventilation will help that.😁
  • SkandiSkandi Posts: 1,723
    I grow them both in the same polytunnel, They don't seem to mind each other at all. Yellow leaves might indicate a nutritional or water deficiency.
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