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Thread: Reversing your Growbags ?

  1. #1
    no_akira's Avatar
    no_akira is offline Sprouter
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    Default Reversing your Growbags ?

    Q: Why aren't growbags black on the outside?

    + Make small hole, empty filling and reverse bag using sewists trick to pull the insides outside.
    Reversing your Growbags ?-growbag_improve_01c.jpg

    + Refill bag but also add a bit of soil from your plot to really "blow it up"
    Reversing your Growbags ?-growbag_improve_02c.jpg

    + Push in square plant pots filled with stones and a handful of fertilizer stuff hidden under stones
    Reversing your Growbags ?-growbag_improve_03c.jpg

    The square watering holes need to come forward a touch and across slightly. Will get it right on my other 3 bags.

    x3 Planting positons with x2 watering points through the stones...

    Main idea being sun warmed roots & watering offset from roots to encourage root growth.

    Also made this medieval hole making tool...when not in use I keep this pressed into deep dense foam, you wouldn't wanna tread on this in the middle of the night
    Reversing your Growbags ?-growbag_improve_04c.jpg
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  2. #2
    Logunner is online now Rooter
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    Default

    No advertising if all black...
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  3. #3
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    Greenleaves is offline The Weed Fairy
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    I wear my jumper inside out sometimes.....
    Mod with attitude!

  4. #4
    Aberdeenplotter is offline Gardening Guru
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    Default

    Black absorbs too much heat.
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  5. #5
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    Scarlet is offline Gone with the Wind
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    Default

    Quote Originally Posted by Aberdeenplotter View Post
    Black absorbs too much heat.
    Yep. Really hot roots slows the growth in many plants.
    This is a really good read.
    Plant roots temperature affecting plant health | CANNA UK
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  6. #6
    no_akira's Avatar
    no_akira is offline Sprouter
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    Think that link applies to growing in tropics... not UK with its "will-get-there-eventually" summer temps.

    Remember its just for tomatoes and my lean-to greenhouse / rain shelter has open sides so runs a little cooler than your trad greenhouse.

    I think toms like a bit of heat and I am watering most evenings during those 2 days of the british summer...

    I had good growth out of this set up last season with x3 gard.delight

    To be honest I think the biggest benefit is churning loosening the compacted soil within the bag and increasing the soil volume by pumping some more gritty clay soil into the mix...
    Last edited by no_akira; 27-03-2020 at 07:45 AM.
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  7. #7
    smallblueplanet's Avatar
    smallblueplanet is offline Mature Fruiter
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    I like the way to add water to the bags. You do see lots of stuff like peppers and melons etc being grown on ridges that are covered in black plastic and planted through.
    To see a world in a grain of sand
    And a heaven in a wild flower

  8. #8
    bikermike is offline Cropper
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    Default

    when I read the title, I had visions of setting a growbag to reverse and watching the plant shrink back down into a seed (possibly quite handy if you get too many going...)

    The hot roots thing is interesting.
    Who knows what the weather will do, but for the last few years, we've had warm Febs and early March with a gotcha! late frost belt, then wet until it stops raining then dry (with drought depending how soon that starts). So I'd be more worried about hot roots than it might otherwise seem at this time. Could you get a similar, but reversible effect by covering them in black plastic for this time of year. If it gets proper hot in summer, it might then be possible to keep the cover, but with an air gap, to shade the growbag?

    I like the waterers though. I use the plastic spike things you put a pop bottle on, and a dripper system that I peg to the bag with a hollow peg so it is held on the surface with a drain into the bag

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