The message
from "Alison" o.uk
contains these words:

I have some young perennial plants (primula vialii, candelabra hybrids,
campanula, coreopsis) that were started from seed in the spring still in 24
cell inserts (a baby came along mid-way through planting). Do you think I
should plant them out now or keep them in the inserts til next spring, or
pot them up and keep them in the polytunnel til next spring?

They are very likely to freeze solid in those small cells, which is
usually fatal to baby plants. So I'd pot them up into 4" pots and keep
them in the polytunnel over winter. You'll be surprised how much new
root growth they can make at this time of year even when the topgrowth
has stopped.

It occurs to me that a polytunnel is the ideal winter spot for a baby
to have a fresh-air sleep in its pram, and you can be out there having
fun at the same time :-)

Janet.