I bought Hedychium coronarium rhizomes in April of 2017 from Mary's Garden Patch online. They shipped right away and they were quite nice sized. I got three white butterfly and three orange bottlebrush, none have bloomed yet but all are growing well and survived our temps down to 28 for many hours. I read they take two years till they bloom but went out today and see a bloom starting on my white, they're really tall, taller than me.
If you're looking to buy, I'd highly recommend Mary's
