There are 5 species in this genus with many new varieties.
In 1967, the first plant was received in Washington DC from Denmark. It grew remarkably well in the USA. It was later crossed with Thuja from Europe and Eastern Asia and became a hybrid.
Thuja grows into a pyramid shape in full sun. It has flat-shaped leaves. It is used in landscaping throughout the USA and makes awesome hedges or stands out as a focal plant.
My brother has it as a hedge instead of a fence. At Christmas time, lights are draped on the hedge. The focal plant also looks lovely with Christmas lights.
Thija has adapted well in Guyana and the Caribbean, where many homeowners also drape it with lights.
Until next week, Happy Gardening.
A happy and blessed New Year to all and thank you for your support during 2017.