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Potting on and into greenhouse

i am new to this. I grew some seeds in my heated propagated and they are now ready for potting on. I know you must wait til after the last frost to put them out. But will transferring them to an I heated greenhouse kill them ?


  • *unheated greenhouse 
  • BorderlineBorderline Posts: 4,688
    edited March 2018
    If you have hardy annuals, usually they should be fine, but if you have been growing them with a heated propagator, then it's best to gradually acclimatise them by leaving them in there in the day time and bringing them back in again for around a week and then leave them there once they get used to it. With half hardy seeds, I would leave them indoors on a sunny warm  window sill until mid to late April, depending on your local climate.
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