Q.Sky Pencil Hollies
I live in zone 5. I see some websites listing Sky Pencil Hollies as zone 5 and some 6. What is the correct zone? If I want to try Sky Pencil Hollies in my zone – they would be on the east side – but should I just get something else instead?

I live in zone 5. I see some websites listing Sky Pencil Hollies as zone 5 and some 6. What is the correct zone? If I want to try Sky Pencil Hollies in my zone - they would be on the East side - but should I just get something else instead?