If you are growing Z. garrettii, chances are the source could have been the same as these, on the Wyoming-Idaho border where I collected it almost 20 years ago. It's amusing to think the only really widespread common name for this is California fuchsia, and of course this is technically a "willowherb" nowadays, and here it comes from a near alpine locality where temperatures drop to -40F most winters (some fuchsia that!). It has opened its first flower in Colorado in late May one year, but always by the end of June--by far the earliest of the genus to bloom. And it is very moisture tolerant as well: I know it thrives in much of the east and midwest and is the one zauschneria they can grow in the Colorado ski towns, where it blooms at summer's end. Widely available in commerce thanks to Plant Select (q.v.)
