Cable
Omono

We haven't had a good argument here in a few days so I thought I'd start one!

Being in the nursery industry I'm interested in a lot of horticulture and ever since I started in bonsai I've wondered about shimpaku junipers and why the nursery I work for doesn't grow them. Off and on I've read various things and even had it in my notes that shimpakus are variants of sargentii. I also saw Ryan Neal's video where he explained that the name is really shinpaku and not shimpaku.
Anyone interested in taxonomy will tell you that there is often debate even amongst experts regarding how various plants, animals, etc. should be classified. In horticulture, whenever that occurs I generally defer to Michael Dirr as he is usually accepted as the definitive expert when it comes to woody plants.
Yesterday I was flipping through his Manual of Woody Landscape Plants because I wanted to see what he had to say on the subject. According to his classification, juniper chinensis shimpaku stands on its own and is not categorized with the sargentii junipers.
That does not contradict something else I read on these forums that claimed shimpakus were a cross between a sargentii and another juniper (I forget which one) and were subsequently classified as x media.
Right now I am planting my flag on the "not a sargentii" hill. Several other people I respect have written that they are, in fact, sargent junipers so make your case!
