Posted: 14/11/2016 at 23:06
. Do you think they can freeze in just 24 hours when it's around +5?
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nothing freezes at +5C, freezing point is 0C
It's a difficult decision to make when plants have been grown soft indoors. It's not an easy time of year for hardening off. I'd put them outside on warmish days for a week or 4, then outside at night if it's not freezing. Eventually they'll be hardened off, you'll see a change in appearance, not so soft and green