Sweet Potatoes from store bought tubers

I bought some sweet potatoes a few days ago and because they were so tasty I've been reading up on how to grow my own. I understand that they can be difficult to grow in colder climates but it is possible. My problem is that I can't find anywhere that sells "slips" in Denmark. Has anyone grown sweet potato slips from store bought sweet potatoes?
After searching online it seems a lot of sweet potatoes have been treated to prevent slips growing but if they haven't it's looks fairly easy to get the slips started. I know it's probably too late in the year to start growing slips for harvesting but I'm tempted to give it go just to see if it works.

 

I've tried growing them by cutting the sprouting bits off but they never came to anything really, too cold for them here I guess.

 

If I can get them started I'm thinking about growing them in a conservatory. Failing that my brother in law lives 5 minutes walk away and has a green house.

 

I bought some plants last year fom B&Q but I guess that's no good if you live in Denmark.

They looked quite tropical but never produced anything edible. They were grown outdoors in a huge pot.

 

I've grown them in a greenhouse. It took ages for the Slips to form on the tubers, I suggest you start around October / November to be ready for the following Spring.

Stick 4 cocktail sticks in the tuber (all around in a circle) about 1/3rd to 1/2 way along. Dangle the short end into a glass (the cocktail sticks supporting it on the edge of the glass) and keep enough water in the glass to cover the bottom 1/3rd, or so, of the tuber. You want the eyes upwards, if you can tell which end is which, but if not I think the tuber will accommodate and cope

You can then use the Shoots as cuttings to start a plant off.

 

I thought there was some special variety sold for growing in colder climes because the stuff in the supermarkets needs a much longer growing season than can be achieved in the UK (or Denmark) and it might be called something like T** or something like that - an alpha numeric reference rather than a name. I tried it once, failed and gave up

 

I have bought, and grown, "beauregard" from the garden centre in the past. Dunno if that is a variety bred for cold-climate though?

 

Googling for what I tried found this

As a Telegraph subscriber I seemed to have missed this offer http://www.telegraph.co.uk/gardening/3340236/The-good-life.html

 

Ah ... I remember "T65" now you say that Not grown it though.

The name "beauregard" reminded me of the sorts of varieties of Veg that Hyacinth Bouquet might grow!

 

I've tried growing from shop bought sweet potatoes on one occasion.
They grew reasonably well, but never came to anything, I was more interested in the plant any way.

 

It reminded me of this character