Hello

I have two Shimpaku Junipers that I keep in this greenhouse over the winter. The temperature has been around -5 for a few days. How do I tell if the roots are freezing?

Also, also any suggestion for winter care not covered in the beginner and intermediate courses on this site would be helpful

Thanks

tronskywalker wrote: I have two Shimpaku Junipers that I keep in this greenhouse over the winter. The temperature has been around -5 for a few days. How do I tell if the roots are freezing?

How do you think junipers survive in nature? There's no one there to take their temperature, and still they do just fine - even when temperatures get much lower than that.

Your greenhouse will do - just make sure it doesn't get too warm in there.

More about Shimpaku care:
www.dallasbonsai.com/care-guides/shimpaku-juniper.html

all my shimpaku sit outside in all weather. Only when it drops below -10 for longer periods of time might I consider moving them out of the wind and sun, and give them some shelter.

here is a very informative video i recommend you watch from bonsai mirai for winter care.