Can I keep my 1 year old bonsai plant inside my greenhouse
I have 1 year old bonsai plant (Japanese Pine) and I want to know if I should keep it inside during winter.
You can definitely keep your 1-year-old bonsai plant inside your greenhouse. Actually depending on the plant type you can keep it outdoors too.
If you have a tropical bonsai plant that cannot survive the cold then I will highly recommend keep it inside your greenhouse.
However, if the plant is of cold origins you can place it outside where it is exposed to all four seasons. But make sure that you water it quite often because of the shallow bonsai pots they root may dry quickly