We originally found Yacon over on Daleys Fruit Tree Nursery. Came with some great creds, so we thought we'd give it a go.
We bought three plants, that came in a pot and were planted out in our front garden in a not too fertalised position.
The plant is a relative of the Sunflower, at least its Daisy heritage is easy to spot:
Come harvest time, it was a simple matter of letting the tops die off and digging up the tubers:
Three buckets full, which weighed in at 19 kg from the three plants.
We saved the 'seed' tubers for planting next year (well, in a couple of months now).
We've been experimenting with different cooking, or not as the case may be (they're great raw as well). But they cook nicely, retain their crispness and mix with lots of different flavours: Strawberry was the most recent hit But they're great in mixed vegetables as well (like stir-fries).
The other thing that's impressive is the harvest time: winter fits nicely when our garden is often a little bare, so it fills a good gap.
They say they get sweeter as they age, so we're anxiously waiting to see if that happens. Currently the flavour is pretty subtle (if you didn't like it you'd probably say bland).