>eternally researching new species and cultivars I've never grown
>find out about "yucon"
>"tastes like a combination of apple, pear, carrot and celery"
Seems they need a 5-6 month growing period. Not something that will happen in my Zone 5. I guess some people are able to grow them in Zone 7. I can grow luffa to maturity, if I try really hard, but there's no way I'd be able to grow yucon. I'll just have to grow sweet potatoes instead.
Anyone know of weird unusual tubers in the US that can be grown in a Zone 5 with around growing 170 days max (frost to frost.)