First chilly spell (hopefully the one) this winter introduced a number of frostdays right down to – 8,6 °F / -12.9 ° C.
Fascinating how microclimate differs by totally different locations and passive safety.
Fascinating how microclimate differs by totally different locations and passive safety.
Right here the coldest place
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Solely 3 m distance however in safety of a brief wall brings 2 ° C of upper temperature 
the two yr previous seedlings, see final submit, with backwall greenhouse and entrance safety airbubblefleece reveals
a achieve of about 4° C
final (warmest) place and double safety with fleece and air bubble fleece reveals a achieve of practically 7 ° C of chilly discount.
On second image are the protected crops, one and two yr previous graftings of slava micurina, Duncan grapefruit and Bloomsweet graft.
Conclusion, for shorter durations passive protecton will be very helpfull towards frost harm, additionally protected locations within the backyard.
