Sky Pencil Holly - Zone 5B Hardy?
I came across these Sky Pencil Holly at Fast-Growing-Trees.com (that's where the photo above is from) and I found myself going down a Sky-Pencil-Holly-rabbit-hole to figure out if we could grow these in the Chicago Suburbs (Zone 5B). The folks at Fast Growing Trees list them to be hardy down to zone 5B. But the team at the Missouri Botanic Garden list them down to Zone 6 . These things are super narrow and grow perfectly upright, so they have a lot of appeal to me. But, I'm afraid that multiple sources (besides the folks who are selling them!) are concurring about Zone 6 hardiness. Check out the video here: In particular, I was thinking about them alongside the north property line, in front of the fence where our (eventual) walkway would direct people back. Check out this area I've circled in red on our landscape plan. It is a tight area that would call for something very slender, yet would provide a sense of 'entrance. ...