By Mab
United Kingdom 
will 4degrees be damaging to runner beans about 14 ins up canes outside
2 May, 2014
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Hi, welcome to GoY, 4c shouldn't cause any damage, and it will only be for a short time, as the nights are shorter now, but if you're worried, put some newspaper over them, that should be sufficient to prevent any frost getting at them, Derek.
2 May, 2014