Thuja occidentalis 'Smaragd'
Thuja Emerald (Smaragd) can be used individually as a specimen conifer or in a group or a formal row.
It is also good in pots and other containers.
Needs little, if any, trimming as it keeps its shape well.
10 year height 1.8-2.5m (6-8ft), spread 60cm (24in). Growth rate 15-30cm (6-12in) per year.
after 20 years expect it to be about 10-12 ft high and 3ft wide at the base