Winter tree grafting

Hello. I recently discovered some Callery pears growing several places on the property. I would like to graft some of my other pear trees onto them. Has anyone ever done this in the winter before?

Doing it in the growing season will allow the rootstock to send nutrients up to the graft so that it can stay alive and they also grow and connect/scab over into one plant. In the winter the graft will probably just dry out from the winter wind.

But give it a try and let me know how it turns out. It never hurts to try. And if they all die by spring you can do another graft again.

I am interested in seeing how it turns out.  

I did my grafting onto existing trees as those trees were budding out and that worked nicely - 10 of 13 survived.

If you're grafting onto bare rootstock, I think the preferred time is about when the snow is melting.  That way they can callus over for a few weeks before you plant them out.  I was told you want to plant them out after the deep freezes are over.

I may give it a go soon on a couple grafts just to see what happens. Will definitely do it closer to spring as well.