I have a 2-3 year old Purpleleaf Sandcherry that I'd like to relocate. Is it safe to do so any time (I'm in Zone 3)? It's about 3' tall/ 2' wide, I would be sure to dig a large root ball, and water well for the rest of the season. Waiting til fall or spring might be difficult, since may be the idea spot for my new hydrangea, and the sandcherry doesn't get enough sun in this location (and is hardly visible against a brown fence). Thanks!