We pass the roadside stall inviting us to stop, with the sign “Kumara - Farm Direct Dargaville”.  Definitely worth a stop.  It’s our own sweet potato, enjoyed for its flavour and as a treat by visitors to our country.  A favourite American relation of ours makes it a priority to grill kumara on her visits here, a delicious barbecue meal.  And it was recently declared New Zealand’s unofficial national vegetable.  But our kumara has a long history, definitely worth knowing.