From our website, you may have seen some photos of "Ritha" otherwise known as "Soapnut".
We have managed to get some of the seeds from Nepal to germinate here in the UK and now have 8 little plants.
The latin name is Sapindus Mukorossi and strictly speaking it is a berry, not a nut, that we use for natural soap. These plants will take a very very long time before they start to produce fruit (which usually happens around August and then ripen by December). I am interested to see if they survive the coming winter and are able to flower come next summer.
For more information about Ritha AKA Chinese Soapberry go to http://en.wikipedia.org/wiki/Sapindus
Other species of Sapindus are also covered in Wiki's article.
