Several Citrus plants are available in Thailand. But if you travel back to Europe you are not allowed by rule of your state in the EU to travel with ( or import ) citrus.
Hoya and other plant collections are for sale on aleyagarden.com Plant care is available in various posts of this blog. Contact : firstname.lastname@example.org
Find all Aleyagarden posts on http://aleyagarden-blog.blogspot.com