I'm not sure if I have what you are looking for. I have a rooted cutting of the plant that Annie's Annuals sells as Purple Tree Collards. Annie's rates it as hardy to zone 7.

Mine is already rooted, and only one cutting. It might make sense to chop off the top and (hopefully) send two rooted cuttings when it warms up there.

If you are interested I could send for postage.

Here is a link that might be useful: Purple Tree Collards from Annie's

Thanks Mark. I will wait until spring.

There is someone who has tree collards available in different sizes.

Here is a link that might be useful: Tree Collards