Extreme Cold in the USA - How are PBS Members Faring?
Garak via pbs (Tue, 16 Feb 2021 13:18:06 PST)

Hi all,

actually, it's not "just" the US, it has hit Europe as well - the highly
unstable polar vortex this year sends arctic outbreaks to the south
whenever it can. Germany had, depending on the location, 1-2 weeks of
unusual cold weather as well, especially when compared to the last few
very mild winters. I've been lucky with just one week with -11°C (12F)
at night, but the middle and the north went well below -20°C for several
nights (even though they got more snow cover than we had). At least I
can tell now for sure that -11°C kills off Kniphofia sarmentosa flower
stalks which went unharmed at -7°C last year. Lets see how the plant
itself recovers. Now, about 1 1/2 weeks of fairly to very warm weather
seem to be ahead (~15°C (60F)), with another chance for an arctic
outbreak afterwards. It's a common misconception that global warming
will ensure mild winters - it could end up right the opposite in case we
get more of those vortex instabilities.

The nasty thing about winter losses is that you can't tell what has
survived until June, when the last Roscoeas should break through the ground.

--
Martin (pronoun: he)
----------------------------------------------
Southern Germany
Likely zone 7a

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