Do you mean Hedychium? If so then you need to cut down last years growth. If there is any new growth then I would keep it and keep it growing in the conservatory. I would also keep it slightly watered. In the ground in a sunny spot, lots of water and feed, then you should get flowers.

Thanks
Have had no success in pots for past few years so will try garden . Do you know whether they need extra feed aswell as plenty of water.

Hedychium flowers on new growth. I occasionally have large stems that don't flower, and it took a season for my H. coronanium to settle in and have a few flowers. It has not died back all the way, and is one of few said to tolerate a little cold. My H. gardneranum dies back all the way every year. I live in a warmer place, and it is considered 100% invasive, but these are tropical plants and need warmth during the growing season. I have them growing in my woods, and they do very well without any fertilizer (too much may encourage foliage instead of flowers).

I don't even know what type of hedychium that I gave as the rhizomes were part of a multi bulb pack from a Dutch bulb field. The label just said hedychium. Not one to give up easily I'll try the garden and lift in the autumn to be safe.