Hi Cheaney,
An initial suggestion that comes to mind is the Cupressus sempervirens ‘Green Pencil’, which is very columnal: [LINK]https://https://www.shootgardening.com/plant/cupressus-sempervirens-green-pencil?referrer=%2Fplant%2Fsearch%3Fq%3Dcupressus+semperviren[/LINK].
A slightly smaller option is Cupressus sempervirens 'Totem Pole': [LINK] https://https://www.shootgardening.com/plant/cupressus-sempervirens-totem-pole?referrer=%2Fplant%2Fsearch%3Fq%3Dcupressus+semperviren[/LINK]
Hope these suggestions give you something to work with!
Regards
Katy
Replied: Tuesday 27th of July 2010 03:58 PM