Question
Given that I am currently living in Central America, I had two questions regarding Thuja Trees :

a) Given that this tree thrives on sunlight, do you think this tree may survive the heat conditions here (between 25篊 and 35篊) ?
b)  Given that usually tree companies sell small trees, is there any way to reproduce Thuja trees out of seeds ? and if so do you have any way about where to get them ?

Thanks a lot in advance for your kind cooperation and reply .

Answer
You should not have any trouble growing thuja in this range of temperatures. There are a couple of companies that advertise they sell thuja seed. here are the web links to some of these.

 http://www.nickys-nursery.co.uk/seeds/pages/index.htm

http://www.seedquest.com/Sources/TreeSeed/T/Thuja.htm