potting shrubs up for MG sale - have questions
I'm not a master gardener but want to donate a few extras for their local sale here. I've done this before but have questions about potting up shrubs. I have a few viburnum prunifoliums that were suckers last year (or maybe the year before). I cut them loose from the parent plant last spring (I think) and then replanted them. I haven't dug them up yet but I am concerned they're not going to fit into my pots. Can I trim roots a little to make them fit? How much can I trim them? The sale will be around mid April. Is this something I should've done last fall so they would fill out the pot before the sale?
Also have nannyberry suckers that haven't been cut loose from the parent yet. If I did that NOW, would they have time to get established?
Any other tips? Should I use potting soil?
I haven't called them yet this year to offer my shrubs because I want to see how big the root systems are first.