Potatoes

In a tyre, but only because they were sprouting. I'll let them grow, but won't stack.

Update 2015/10/23:

Have just dug up a traditional bed, and  planted out a bunch of chitted potatoes.

The gardening assistants believe it's some sort of race track.

Update 2015/11/01:

Update 2015/11/11:

No longer a race track. But need to work out when/how to hill them.
They need to grow a bit more, according to Youtube...

Update 2015/11/28:

Hilled, sort of. Soil is wet, and they have grown more than expected.