asparagus

Have 18 young asparagus plants grown from seed this summer.  Now in 3" pots in unheated greenhouse - looking healthy and between 6" to 15" tall.  Some beginning to bush up a bit.

Will they overwinter safely in the unheated greenhouse?  What should I do to keep them alive and healthy?

As they are hardy they should be fine in an unheated greenhouse. Just don't forget them as they won't be rained on and the roots shouldn't be allowed to dry out. Feed them in the Spring. My asparagus seeds itself in the vegetable garden and I find baby plants in the wrong places which have overwintered outside.

Thanks very much!  Will follow your advice