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Tomatoes, how early can they go out in final pots?

Hi guys.

So I started a few varieties of cherry/small salad types in a heated propagator late Feb . Now they're around 6-7" tall with quite a lot of leaves. At the moment they're on my windowsill in small 3-4" wide pots. I have read once the plant is around three times as tall as the pot it's time to re-pot it. So obviously that'll happen soon but I don't have much windowsill space for them in bigger pots.

I was wondering if when they are a couple inches taller can I just plant them in their 15ltr pots and have them in my plastic greenhouse outside during the day and bring them in to the kitchen at night? Obviously the weather can change but the day time temperatures have seemed constantly reasonable in the east Midlands at the moment so hopefully that'll keep going. 


  • LynLyn Posts: 21,375
    You can do just that, I would leave mine outside for good at the start of June, but we are usually cold and windy here, 
    dont plant them in a pot that’s too big for them, best to go up in stages ,  when the roots show out of the bottom of the pots is the time. Then just go up a bit. 
    Gardening on the wild, windy west side of Dartmoor. 

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