Sadfield
Landlord.
Forgot to mention @An Ankoù in Lars' book he mentioned Juniperus Communis variants are well, common across Europe and this is what is usually used. This is rare in the US, we're other species can be used with the exception Juniperus Sabina which is toxic. His other warning is to not mistake Juniper for highly toxic Common Yew (Taxus Baccata) which looks similar.