Hey L1. I reckon it’s best to have a dedicated sweet spud area. Use it for a few years or so and then move it. Or grow them in a container. They can be difficult to remove as any bit of roots left in the ground will probably regrow. I had a few mini tubers from a previous crop in a polystyrene box just sitting on the ground under a tree. It’s now a sweet spud patch as i removed the box with some effort and the roots are growing below it into new plants. It’s quite prolific.
Once they get growing, they may try to take root along the runner. You need to lift the runners where they are in contact with the ground occassionally to prevent this or it will reduce your crop.
They also seem to do well with a complete defoliation once a season. A fat little wallaby used to do mine. Chooks seem to like the leaves so maybe they could be let loose on them once in a while. They’re quite an attractive plant i reckon and very easy to grow. Treat a bit like regular spuds, not too much water and plenty of goodies and you’ll get a bumper crop.
You can plant 300mm long runners with all the leaves removed. (Leave the growing tip) Cut a shallow trench, lay the runner in it and cover, leaving the tip exposed. Water in and forget for a while. Or you can plant tubers, even from the supermarket, just take the ends off a tuber and plant, like a spud. Don’t overwater or they may rot unless your drainage is really good.
You can also grow a runner in a bottle of water as an indoor plant. Not too bad. Same as before, remove the leaves, drop it in a bottle and away she grows. Do this also if you get some runners but don’t have a spot prepared yet.
My fav is the orange sweet spud. There are a few others including a white one with purple flesh but i find them a bit bland and dry.