hmm dunno, but my mum got me a Silverhill Mandarin clone for my bday, i
think its the best bday prezzie i ever got it'll reward me for many years
to come. Silverhill is easy to grow, it's a clone (im not sure what
rootstock they use tho), and it's seedless (which is why you can only get it
as a clone)
I just grow it in a bigarse pot in my backyard