Last fall (2012) while I was cleaning up a big pot of Weldenia candida before putting it into storage for the winter, I noticed that there were a number of small offsets around the main crown. I pulled these off and put them in their own pot for storage, in clean, dry sand. They were short lengths of slightly fleshy root, with a growing point at one end.
This spring, when the pot came out of storage, I kept it under cover and watered it very cautiously for a while, just a few ml of water at a time, finally putting it outside in early May to enjoy the spring rain. To my surprise three of these offsets are now growing as I write, though of course they're very small. I suspect that had I kept the storage pot slightly moist, more of them would have survived and sprouted.
I can't say whether these offsets came from a plant originally given to me by a local alpine enthusiast, traceable back to Ingwersen's, or from one sent to me by a generous member in NZ. Both may be the same clone, but I am keeping my fingers crossed that they aren't, in the hope of getting some seed off the plants.