The message
from "Heather" contains
these words:

Hi all

I've put them all outside - the instructions that came with them said don't
put them in a dry or heated area as they will dry out too much. I've
unwrapped the plastic wrapped ones and put them in an unheated shed to keep
the snow off the roots.

I hope this doesn't mean you've left the roots open to the air. It's
important to keep the roots from drying out.

Janet G