I finally got my front bed cleared out, had day lily, roses and blackberry lily in it and my brother hauled over 20 bags of top soil yesterday and we dumped it in the newly cleared bed. This morning I planted all the Curcuma I got from Ken. They had been in pots all summer. I wanted to make sure they had really good roots before planting in the ground. I have 2 Costus, one Ken sent me and another that piggybacked on some crinum that someone sent me. Not being familiar with it, I wasn't sure about the Costus.
I just wish I could grow Alpinia, but was told it flowers on "old wood" so since they die back in winter, I'd never get blooms.
I'll be knocking on your door soon Ken for another trade.
I don't know about all costus, but costus barbatus will not bloom if it is allowed to freeze. Consequently, I've always grown mine in pots and greenhoused them in winter, so I'm not even sure that the plant will come back after a freeze. (Zone 8a/b)
I have a big ginger bed in the back yard .. hedychiums and curcuma and thanks to Ken, Costus for next year .. I'm just getting too old for high maintenance stuff so I've been totally revamping my garden front and back to make it easier to maintain.